diff --git a/build.gradle b/build.gradle
index af2a02a2..416596c8 100644
--- a/build.gradle
+++ b/build.gradle
@@ -64,6 +64,7 @@ dependencies {
     compileOnly('com.willfp:eco:6.38.3')
     compileOnly('com.github.Zrips:Jobs:4.17.2')
     compileOnly('com.github.LoneDev6:api-itemsadder:3.2.3c')
+    compileOnly('net.objecthunter:exp4j:0.4.8')
     implementation('net.kyori:adventure-api:4.11.0')
     implementation('net.kyori:adventure-platform-bukkit:4.1.2')
     implementation('net.kyori:adventure-text-minimessage:4.11.0')
diff --git a/libs/oraxen(premium).txt b/libs/oraxen(premium).txt
index 399f3be5..d1c9fc67 100644
--- a/libs/oraxen(premium).txt
+++ b/libs/oraxen(premium).txt
@@ -1 +1 @@
-https://www.spigotmc.org/resources/%E2%9C%85-10-%E2%98%84%EF%B8%8F-oraxen-add-items-blocks-armors-hats-food-furnitures-plants-and-gui.72448/
\ No newline at end of file
+https://www.spigotmc.org/resources/%E2%9C%85-10-%E2%98%84%EF%B8%8F-oraxen-add-items-blocks-armors-hats-food-furnitures-plants-and-sellFishGui.72448/
\ No newline at end of file
diff --git a/src/main/java/net/momirealms/customfishing/CustomFishing.java b/src/main/java/net/momirealms/customfishing/CustomFishing.java
index accca61f..1be27992 100644
--- a/src/main/java/net/momirealms/customfishing/CustomFishing.java
+++ b/src/main/java/net/momirealms/customfishing/CustomFishing.java
@@ -20,7 +20,9 @@ package net.momirealms.customfishing;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
 import net.kyori.adventure.platform.bukkit.BukkitAudiences;
+import net.momirealms.customfishing.commands.FishingBagCommand;
 import net.momirealms.customfishing.commands.PluginCommand;
+import net.momirealms.customfishing.commands.SellFishCommand;
 import net.momirealms.customfishing.helper.LibraryLoader;
 import net.momirealms.customfishing.manager.*;
 import net.momirealms.customfishing.util.AdventureUtil;
@@ -43,6 +45,7 @@ public final class CustomFishing extends JavaPlugin {
     private LayoutManager layoutManager;
     private DataManager dataManager;
     private TotemManager totemManager;
+    private SellManager sellManager;
 
 //                              _ooOoo_
 //                             o8888888o
@@ -71,6 +74,7 @@ public final class CustomFishing extends JavaPlugin {
         LibraryLoader.load("org.apache.commons","commons-pool2","2.11.1","https://repo.maven.apache.org/maven2/");
         LibraryLoader.load("dev.dejvokep","boosted-yaml","1.3","https://repo.maven.apache.org/maven2/");
         LibraryLoader.load("com.zaxxer","HikariCP","5.0.1","https://repo.maven.apache.org/maven2/");
+        LibraryLoader.load("net.objecthunter","exp4j","0.4.8","https://repo.maven.apache.org/maven2/");
     }
 
     @Override
@@ -85,23 +89,43 @@ public final class CustomFishing extends JavaPlugin {
         this.layoutManager = new LayoutManager();
         this.dataManager = new DataManager();
         this.totemManager = new TotemManager();
+        this.sellManager = new SellManager();
         ConfigUtil.reload();
+        registerCommands();
 
-        PluginCommand pluginCommand = new PluginCommand();
-        Bukkit.getPluginCommand("customfishing").setExecutor(pluginCommand);
-        Bukkit.getPluginCommand("customfishing").setTabCompleter(pluginCommand);
         AdventureUtil.consoleMessage("[CustomFishing] Plugin Enabled!");
         new Metrics(this, 16648);
     }
 
     @Override
     public void onDisable() {
+        this.fishingManager.unload();
+        this.integrationManager.unload();
+        this.competitionManager.unload();
+        this.bonusManager.unload();
+        this.lootManager.unload();
+        this.layoutManager.unload();
+        this.dataManager.unload();
+        this.totemManager.unload();
+        this.sellManager.unload();
         if (adventure != null) {
             adventure.close();
             adventure = null;
         }
     }
 
+    private void registerCommands() {
+        PluginCommand pluginCommand = new PluginCommand();
+        Bukkit.getPluginCommand("customfishing").setExecutor(pluginCommand);
+        Bukkit.getPluginCommand("customfishing").setTabCompleter(pluginCommand);
+        FishingBagCommand fishingBagCommand = new FishingBagCommand();
+        Bukkit.getPluginCommand("fishingbag").setExecutor(fishingBagCommand);
+        Bukkit.getPluginCommand("fishingbag").setTabCompleter(fishingBagCommand);
+        SellFishCommand sellFishCommand = new SellFishCommand();
+        Bukkit.getPluginCommand("sellfish").setExecutor(sellFishCommand);
+        Bukkit.getPluginCommand("sellfish").setTabCompleter(sellFishCommand);
+    }
+
     public IntegrationManager getIntegrationManager() {
         return integrationManager;
     }
@@ -133,4 +157,8 @@ public final class CustomFishing extends JavaPlugin {
     public TotemManager getTotemManager() {
         return totemManager;
     }
+
+    public SellManager getSellManager() {
+        return sellManager;
+    }
 }
diff --git a/src/main/java/net/momirealms/customfishing/commands/FishingBagCommand.java b/src/main/java/net/momirealms/customfishing/commands/FishingBagCommand.java
new file mode 100644
index 00000000..9ba8a9e1
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/commands/FishingBagCommand.java
@@ -0,0 +1,66 @@
+package net.momirealms.customfishing.commands;
+
+import net.momirealms.customfishing.commands.subcmd.OpenCommand;
+import net.momirealms.customfishing.manager.MessageManager;
+import net.momirealms.customfishing.util.AdventureUtil;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
+
+public class FishingBagCommand implements TabExecutor {
+
+    private final Map<String, SubCommand> subCommandMap;
+
+    public FishingBagCommand() {
+        subCommandMap = new ConcurrentHashMap<>();
+        regDefaultSubCommands();
+    }
+
+    private void regDefaultSubCommands() {
+        regSubCommand(OpenCommand.INSTANCE);
+    }
+
+    public void regSubCommand(SubCommand executor) {
+        subCommandMap.put(executor.getSubCommand(), executor);
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        List<String> argList = Arrays.asList(args);
+        if (argList.size() < 1) {
+            AdventureUtil.sendMessage(sender, MessageManager.prefix + MessageManager.nonArgs);
+            return true;
+        }
+        SubCommand subCommand = subCommandMap.get(argList.get(0));
+        if (subCommand != null)
+            return subCommand.onCommand(sender, argList.subList(1, argList.size()));
+        else {
+            AdventureUtil.sendMessage(sender, MessageManager.prefix + MessageManager.unavailableArgs);
+            return true;
+        }
+    }
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
+        List<String> argList = Arrays.asList(args);
+        if (argList.size() <= 1) {
+            List<String> returnList = new ArrayList<>(subCommandMap.keySet());
+            returnList.removeIf(str -> !str.startsWith(args[0]));
+            return returnList;
+        }
+        SubCommand subCommand = subCommandMap.get(argList.get(0));
+        if (subCommand != null)
+            return subCommand.onTabComplete(sender, argList.subList(1, argList.size()));
+        else
+            return Collections.singletonList("");
+    }
+
+    public Map<String, SubCommand> getSubCommandMap() {
+        return subCommandMap;
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/commands/SellFishCommand.java b/src/main/java/net/momirealms/customfishing/commands/SellFishCommand.java
new file mode 100644
index 00000000..e589e5c7
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/commands/SellFishCommand.java
@@ -0,0 +1,31 @@
+package net.momirealms.customfishing.commands;
+
+import net.momirealms.customfishing.CustomFishing;
+import net.momirealms.customfishing.manager.MessageManager;
+import net.momirealms.customfishing.util.AdventureUtil;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.List;
+
+public class SellFishCommand implements TabExecutor {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!(sender instanceof Player player)) {
+            AdventureUtil.sendMessage(sender, MessageManager.prefix + MessageManager.noConsole);
+            return true;
+        }
+        CustomFishing.plugin.getSellManager().openGuiForPlayer(player);
+        return true;
+    }
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
+        return null;
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/commands/subcmd/OpenCommand.java b/src/main/java/net/momirealms/customfishing/commands/subcmd/OpenCommand.java
new file mode 100644
index 00000000..e468b1f4
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/commands/subcmd/OpenCommand.java
@@ -0,0 +1,24 @@
+package net.momirealms.customfishing.commands.subcmd;
+
+import net.momirealms.customfishing.commands.AbstractSubCommand;
+import net.momirealms.customfishing.commands.SubCommand;
+import org.bukkit.command.CommandSender;
+
+import java.util.List;
+
+public class OpenCommand extends AbstractSubCommand {
+
+    public static final SubCommand INSTANCE = new OpenCommand();
+
+    private OpenCommand() {
+        super("open", null);
+    }
+
+    @Override
+    public boolean onCommand(CommandSender sender, List<String> args) {
+        if (args.size() < 1) {
+
+        }
+        return true;
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/data/PlayerData.java b/src/main/java/net/momirealms/customfishing/data/PlayerData.java
new file mode 100644
index 00000000..4527044e
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/data/PlayerData.java
@@ -0,0 +1,4 @@
+package net.momirealms.customfishing.data;
+
+public class PlayerData {
+}
diff --git a/src/main/java/net/momirealms/customfishing/integration/VaultHook.java b/src/main/java/net/momirealms/customfishing/integration/VaultHook.java
new file mode 100644
index 00000000..70564b41
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/integration/VaultHook.java
@@ -0,0 +1,19 @@
+package net.momirealms.customfishing.integration;
+
+import net.milkbowl.vault.economy.Economy;
+import net.momirealms.customfishing.CustomFishing;
+import org.bukkit.plugin.RegisteredServiceProvider;
+
+public class VaultHook {
+
+    public static Economy economy;
+
+    public static boolean initialize() {
+        RegisteredServiceProvider<Economy> rsp = CustomFishing.plugin.getServer().getServicesManager().getRegistration(Economy.class);
+        if (rsp == null) {
+            return false;
+        }
+        economy = rsp.getProvider();
+        return true;
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/manager/BonusManager.java b/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
index c4eed82d..a1073f79 100644
--- a/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/BonusManager.java
@@ -10,6 +10,7 @@ import net.momirealms.customfishing.util.ConfigUtil;
 import net.momirealms.customfishing.util.ItemStackUtil;
 import org.bukkit.Material;
 import org.bukkit.NamespacedKey;
+import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.inventory.ItemFlag;
 import org.bukkit.inventory.ItemStack;
@@ -184,7 +185,7 @@ public class BonusManager extends Function {
         AdventureUtil.consoleMessage("[CustomFishing] Loaded <green>" + RODITEMS.size() + " <gray>rods");
     }
 
-    public static void setItemProperties(YamlConfiguration config, String key, Item item) {
+    public static void setItemProperties(ConfigurationSection config, String key, Item item) {
         item.setUnbreakable(config.getBoolean(key + ".unbreakable", false));
         if (config.contains(key + ".display.lore")) item.setLore(config.getStringList(key + ".display.lore"));
         if (config.contains(key + ".display.name")) item.setName(config.getString(key + ".display.name"));
diff --git a/src/main/java/net/momirealms/customfishing/manager/ConfigManager.java b/src/main/java/net/momirealms/customfishing/manager/ConfigManager.java
index 6c80f206..c0bde9de 100644
--- a/src/main/java/net/momirealms/customfishing/manager/ConfigManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/ConfigManager.java
@@ -1,5 +1,7 @@
 package net.momirealms.customfishing.manager;
 
+import net.momirealms.customfishing.integration.VaultHook;
+import net.momirealms.customfishing.util.AdventureUtil;
 import net.momirealms.customfishing.util.ConfigUtil;
 import net.momirealms.customfishing.util.JedisUtil;
 import org.bukkit.Bukkit;
@@ -25,7 +27,6 @@ public class ConfigManager {
     public static boolean needRodForLoots;
     public static boolean needRodToFish;
     public static boolean rodLoseDurability;
-    public static int fishFinderCoolDown;
     public static boolean enableCompetition;
     public static boolean disableJobsXp;
     public static boolean convertMMOItems;
@@ -47,6 +48,9 @@ public class ConfigManager {
     public static boolean useRedis;
     public static int lavaMaxTime;
     public static int lavaMinTime;
+    public static boolean addTagToFish;
+    public static boolean logEarning;
+    public static boolean vaultHook;
 
     public static void load() {
         ConfigUtil.update("config.yml");
@@ -79,13 +83,14 @@ public class ConfigManager {
         needRodForLoots = config.getBoolean("mechanics.need-special-rod.for-loots", false);
         needRodToFish = config.getBoolean("mechanics.need-special-rod.to-fish", false);
         rodLoseDurability = config.getBoolean("mechanics.rod-lose-durability", true);
-        fishFinderCoolDown = config.getInt("mechanics.fishfinder-cooldown", 3000);
         enableCompetition = config.getBoolean("mechanics.fishing-competition.enable", true);
 
         priority = config.getString("other-settings.event-priority", "NORMAL").toUpperCase();
         disableJobsXp = config.getBoolean("other-settings.disable-JobsReborn-fishing-exp", false);
         preventPickUp = config.getBoolean("other-settings.prevent-other-players-pick-up-loot", false);
         convertMMOItems = config.getBoolean("other-settings.convert-MMOItems-rods", false);
+        logEarning = config.getBoolean("other-settings.log-earnings", true);
+        vaultHook = config.getBoolean("integration.Vault", true);
 
         successTitle = config.getStringList("titles.success.title").toArray(new String[0]);
         successSubTitle = config.getStringList("titles.success.subtitle").toArray(new String[0]);
@@ -99,8 +104,10 @@ public class ConfigManager {
         failureFadeStay = config.getInt("titles.failure.fade.stay", 30) * 50;
         failureFadeOut = config.getInt("titles.failure.fade.out", 10) * 50;
 
-        lavaMinTime = config.getInt("mechanics.lava-fishing.min-time", 100);
-        lavaMaxTime = config.getInt("mechanics.lava-fishing.max-time", 600) - lavaMinTime;
+        lavaMinTime = config.getInt("mechanics.lava-fishing.min-wait-time", 100);
+        lavaMaxTime = config.getInt("mechanics.lava-fishing.max-wait-time", 600) - lavaMinTime;
+
+        addTagToFish = config.getBoolean("mechanics.fishing-bag.can-store-fish", false);
 
         useRedis = false;
         if (enableCompetition && config.getBoolean("mechanics.fishing-competition.redis", false)) {
@@ -108,6 +115,13 @@ public class ConfigManager {
             JedisUtil.initializeRedis(configuration);
             useRedis = true;
         }
+
+        if (vaultHook) {
+            if (!VaultHook.initialize()) {
+                vaultHook = false;
+                AdventureUtil.consoleMessage("<red>[CustomFishing] Failed to hook into Vault!");
+            }
+        }
     }
     public static List<World> getWorldsList() {
         if (whiteOrBlack) {
diff --git a/src/main/java/net/momirealms/customfishing/manager/FishingManager.java b/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
index ff95d50a..ce9afb65 100644
--- a/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/FishingManager.java
@@ -18,7 +18,6 @@ import net.momirealms.customfishing.object.Function;
 import net.momirealms.customfishing.object.action.ActionInterface;
 import net.momirealms.customfishing.object.fishing.*;
 import net.momirealms.customfishing.object.loot.DroppedItem;
-import net.momirealms.customfishing.object.fishing.BobberCheckTask;
 import net.momirealms.customfishing.object.loot.Loot;
 import net.momirealms.customfishing.object.loot.Mob;
 import net.momirealms.customfishing.object.requirements.RequirementInterface;
@@ -395,6 +394,9 @@ public class FishingManager extends Function {
             Competition.currentCompetition.getBossBarManager().tryJoin(player);
         }
 
+        ItemStackUtil.addExtraMeta(drop, droppedItem);
+        if (ConfigManager.addTagToFish) ItemStackUtil.addIdentifier(drop, "loot", droppedItem.getKey());
+
         dropItem(player, location, fishResultEvent.isDouble(), drop);
         for (ActionInterface action : droppedItem.getSuccessActions())
             action.doOn(player, null);
@@ -753,7 +755,7 @@ public class FishingManager extends Function {
     }
 
     private void useFinder(Player player) {
-        if (isCoolDown(player, ConfigManager.fishFinderCoolDown)) return;
+        if (isCoolDown(player, 1000)) return;
         List<Loot> possibleLoots = getPossibleWaterLootList(new FishingCondition(player.getLocation(), player), true);
 
         FishFinderEvent fishFinderEvent = new FishFinderEvent(player, possibleLoots);
diff --git a/src/main/java/net/momirealms/customfishing/manager/LootManager.java b/src/main/java/net/momirealms/customfishing/manager/LootManager.java
index de8ebaf8..640d6ccb 100644
--- a/src/main/java/net/momirealms/customfishing/manager/LootManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/LootManager.java
@@ -127,6 +127,18 @@ public class LootManager extends Function {
                 if (config.contains(key + ".nick")) loot.setNick(config.getString(key + ".nick"));
                 else loot.setNick(ChatColor.stripColor(config.getString(key + ".display.name", key)));
                 loot.setRandomDurability(config.getBoolean(key + ".random-durability", false));
+                if (config.contains(key + ".size")) {
+                    String[] size = StringUtils.split(config.getString(key + ".size", "1~10"), "~");
+                    if (size.length != 2) {
+                        AdventureUtil.consoleMessage("<red>[CustomFishing] Wrong size found at " + key);
+                        continue;
+                    }
+                    loot.setSize(size);
+                }
+                if (config.contains(key + ".price")) {
+                    loot.setBasicPrice((float) config.getDouble(key + ".price.basic", 0));
+                    loot.setSizeBonus((float) config.getDouble(key + ".price.bonus", 0));
+                }
                 if (config.contains(key + ".random-enchantments")){
                     List<LeveledEnchantment> randomEnchants = new ArrayList<>();
                     config.getConfigurationSection(key + ".random-enchantments").getValues(false).forEach((order, enchant) -> {
diff --git a/src/main/java/net/momirealms/customfishing/manager/SellManager.java b/src/main/java/net/momirealms/customfishing/manager/SellManager.java
index 8f742cae..3a61cc91 100644
--- a/src/main/java/net/momirealms/customfishing/manager/SellManager.java
+++ b/src/main/java/net/momirealms/customfishing/manager/SellManager.java
@@ -1,4 +1,304 @@
 package net.momirealms.customfishing.manager;
 
-public class SellManager {
+import de.tr7zw.changeme.nbtapi.NBTCompound;
+import de.tr7zw.changeme.nbtapi.NBTItem;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.sound.Sound;
+import net.momirealms.customfishing.CustomFishing;
+import net.momirealms.customfishing.integration.VaultHook;
+import net.momirealms.customfishing.object.Function;
+import net.momirealms.customfishing.object.loot.Item;
+import net.momirealms.customfishing.object.sell.ContainerPacketListener;
+import net.momirealms.customfishing.object.sell.InventoryListener;
+import net.momirealms.customfishing.util.AdventureUtil;
+import net.momirealms.customfishing.util.ConfigUtil;
+import net.momirealms.customfishing.util.ItemStackUtil;
+import net.objecthunter.exp4j.Expression;
+import net.objecthunter.exp4j.ExpressionBuilder;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.entity.Player;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.inventory.*;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.*;
+
+public class SellManager extends Function {
+
+    private final ContainerPacketListener containerPacketListener;
+    private final InventoryListener inventoryListener;
+    public static String formula;
+    public static String title;
+    public static int guiSize;
+    public static String msgNotification;
+    public static String actionbarNotification;
+    public static String titleNotification;
+    public static String subtitleNotification;
+    public static int titleIn;
+    public static int titleStay;
+    public static int titleOut;
+    public static String[] commands;
+    public static Item sellIcon;
+    public static Item denyIcon;
+    public static Key closeKey;
+    public static Key openKey;
+    public static Key successKey;
+    public static Key denyKey;
+    public static Sound.Source soundSource;
+    public static HashMap<Integer, ItemStack> guiItems;
+    public static HashSet<Integer> functionIconSlots;
+    public static HashMap<Material, Float> vanillaPrices = new HashMap<>();
+    private final HashMap<Player, Inventory> inventoryCache;
+    private final HashMap<Player, Long> coolDown;
+
+    public SellManager() {
+        this.containerPacketListener = new ContainerPacketListener();
+        this.inventoryListener = new InventoryListener(this);
+        this.inventoryCache = new HashMap<>();
+        this.coolDown = new HashMap<>();
+    }
+
+    @Override
+    public void load() {
+        loadConfig();
+        CustomFishing.protocolManager.addPacketListener(containerPacketListener);
+        Bukkit.getPluginManager().registerEvents(inventoryListener, CustomFishing.plugin);
+    }
+
+    @Override
+    public void unload() {
+        for (Player player : this.inventoryCache.keySet()) {
+            player.closeInventory();
+        }
+        this.inventoryCache.clear();
+        CustomFishing.protocolManager.removePacketListener(containerPacketListener);
+        HandlerList.unregisterAll(inventoryListener);
+    }
+
+    private void loadConfig() {
+        functionIconSlots = new HashSet<>();
+        guiItems = new HashMap<>();
+        vanillaPrices = new HashMap<>();
+        YamlConfiguration config = ConfigUtil.getConfig("sell-fish.yml");
+        formula = config.getString("price-formula", "{base} + {bonus} * {size}");
+        title = config.getString("container-title");
+        guiSize = config.getInt("rows") * 9;
+        openKey = config.contains("sounds.open") ? Key.key(config.getString("sounds.open")) : null;
+        closeKey = config.contains("sounds.close") ? Key.key(config.getString("sounds.close")) : null;
+        successKey = config.contains("sounds.success") ? Key.key(config.getString("sounds.success")) : null;
+        denyKey = config.contains("sounds.deny") ? Key.key(config.getString("sounds.deny")) : null;
+        soundSource = Sound.Source.valueOf(config.getString("sounds.type","player").toUpperCase());
+        if (config.contains("decorative-icons")){
+            config.getConfigurationSection("decorative-icons").getKeys(false).forEach(key -> {
+                Item item = new Item(Material.valueOf(config.getString("decorative-icons." + key + ".material", "PAPER").toUpperCase()));
+                if (config.contains("decorative-icons." + key + ".display.name")) item.setName(config.getString("decorative-icons." + key + ".display.name"));
+                if (config.contains("decorative-icons." + key + ".display.lore")) item.setLore(config.getStringList("decorative-icons." + key + ".display.lore"));
+                if (config.contains("decorative-icons." + key + ".custom-model-data")) item.setCustomModelData(config.getInt("decorative-icons." + key + ".custom-model-data"));
+                ItemStack itemStack = ItemStackUtil.getFromItem(item);
+                for (int slot : config.getIntegerList("decorative-icons." + key + ".slot")) {
+                    guiItems.put(slot - 1, itemStack);
+                }
+            });
+        }
+
+        sellIcon = new Item(Material.valueOf(config.getString("functional-icons.sell.material", "PAPER").toUpperCase()));
+        if (config.contains("functional-icons.sell.display.name")) sellIcon.setName(config.getString("functional-icons.sell.display.name"));
+        if (config.contains("functional-icons.sell.display.lore")) sellIcon.setLore(config.getStringList("functional-icons.sell.display.lore"));
+        if (config.contains("functional-icons.sell.custom-model-data")) sellIcon.setCustomModelData(config.getInt("functional-icons.sell.custom-model-data"));
+        denyIcon = new Item(Material.valueOf(config.getString("functional-icons.deny.material", "PAPER").toUpperCase()));
+        if (config.contains("functional-icons.deny.display.name")) denyIcon.setName(config.getString("functional-icons.deny.display.name"));
+        if (config.contains("functional-icons.deny.display.lore")) denyIcon.setLore(config.getStringList("functional-icons.deny.display.lore"));
+        if (config.contains("functional-icons.deny.custom-model-data")) denyIcon.setCustomModelData(config.getInt("functional-icons.deny.custom-model-data"));
+
+        for (int slot : config.getIntegerList("functional-icons.slots")) {
+            guiItems.put(slot - 1, ItemStackUtil.getFromItem(sellIcon));
+            functionIconSlots.add(slot - 1);
+        }
+
+        if (config.getBoolean("actions.message.enable", false)) {
+            msgNotification = config.getString("actions.message.text");
+        } else msgNotification = null;
+        if (config.getBoolean("actions.actionbar.enable", false)) {
+            actionbarNotification = config.getString("actions.actionbar.text");
+        } else actionbarNotification = null;
+        if (config.getBoolean("actions.title.enable", false)) {
+            titleNotification = config.getString("actions.title.title");
+            subtitleNotification = config.getString("actions.title.subtitle");
+            titleIn = config.getInt("actions.title.in");
+            titleStay = config.getInt("actions.title.stay");
+            titleOut = config.getInt("actions.title.out");
+        } else actionbarNotification = null;
+        if (config.getBoolean("actions.commands.enable")) {
+            commands = config.getStringList("actions.commands.value").toArray(new String[0]);
+        } else commands = null;
+
+        ConfigurationSection configurationSection = config.getConfigurationSection("vanilla-item-price");
+        if (configurationSection != null) {
+            for (String vanilla : configurationSection.getKeys(false)) {
+                vanillaPrices.put(Material.valueOf(vanilla.toUpperCase()), (float) configurationSection.getDouble(vanilla));
+            }
+        }
+    }
+
+    public void openGuiForPlayer(Player player) {
+        player.closeInventory();
+        Inventory inventory = Bukkit.createInventory(player, guiSize, "{CustomFishing}");
+        for (Map.Entry<Integer, ItemStack> entry : guiItems.entrySet()) {
+            inventory.setItem(entry.getKey(), entry.getValue());
+        }
+        inventoryCache.put(player, inventory);
+        player.openInventory(inventory);
+        if (openKey != null) AdventureUtil.playerSound(player, soundSource, openKey, 1, 1);
+    }
+
+    public void onOpen(InventoryOpenEvent event) {
+        final Player player = (Player) event.getPlayer();
+        Inventory inventory = inventoryCache.get(player);
+        if (inventory == null) return;
+        if (inventory == event.getInventory()) {
+            for (int slot : functionIconSlots) {
+                inventory.setItem(slot, ItemStackUtil.getFromItem(sellIcon.cloneWithPrice(getTotalPrice(getPlayerItems(inventory)))));
+            }
+        }
+    }
+
+    public void onClick(InventoryClickEvent event) {
+        final Player player = (Player) event.getView().getPlayer();
+        Inventory inventory = inventoryCache.get(player);
+        if (inventory == null) return;
+        boolean update = true;
+        if (inventory == event.getClickedInventory()) {
+            int clickedSlot = event.getSlot();
+            if (guiItems.containsKey(clickedSlot)) {
+                event.setCancelled(true);
+            }
+            if (functionIconSlots.contains(clickedSlot)) {
+                List<ItemStack> playerItems = getPlayerItems(inventory);
+                float totalPrice = getTotalPrice(playerItems);
+                if (totalPrice > 0) {
+                    for (ItemStack playerItem : playerItems) {
+                        if (playerItem == null || playerItem.getType() == Material.AIR) continue;
+                        if (getSingleItemPrice(playerItem) == 0) continue;
+                        playerItem.setAmount(0);
+                    }
+                    doActions(player, totalPrice);
+                    inventory.close();
+                }
+                else {
+                    for (int slot : functionIconSlots) {
+                        inventory.setItem(slot, ItemStackUtil.getFromItem(denyIcon));
+                    }
+                    update = false;
+                    if (denyKey != null) AdventureUtil.playerSound(player, soundSource, denyKey, 1, 1);
+                }
+            }
+        }
+        if (update && !isCoolDown(player, 1000)) {
+            Bukkit.getScheduler().runTaskLater(CustomFishing.plugin, () -> {
+                ItemStack icon = ItemStackUtil.getFromItem(sellIcon.cloneWithPrice(getTotalPrice(getPlayerItems(inventory))));
+                for (int slot : functionIconSlots) {
+                    inventory.setItem(slot, icon);
+                }
+            }, 1);
+        }
+    }
+
+    public boolean isCoolDown(Player player, long delay) {
+        long time = System.currentTimeMillis();
+        if (time - (coolDown.getOrDefault(player, time - delay)) < delay) return true;
+        coolDown.put(player, time);
+        return false;
+    }
+
+    public void onClose(InventoryCloseEvent event) {
+        final Player player = (Player) event.getPlayer();
+        Inventory inventory = inventoryCache.remove(player);
+        if (inventory == null) return;
+        coolDown.remove(player);
+        if (event.getInventory() == inventory) {
+            returnItems(getPlayerItems(event.getInventory()), player);
+            if (closeKey != null) AdventureUtil.playerSound(player, soundSource, closeKey, 1, 1);
+        }
+    }
+
+    private List<ItemStack> getPlayerItems(Inventory inventory) {
+        List<ItemStack> items = new ArrayList<>();
+        for (int i = 0; i < guiSize; i++) {
+            if (guiItems.containsKey(i)) continue;
+            items.add(inventory.getItem(i));
+        }
+        return items;
+    }
+
+    private void returnItems(List<ItemStack> itemStacks, Player player){
+        Inventory inventory = player.getInventory();
+        for (ItemStack stack : itemStacks) {
+            if (stack == null || stack.getType() == Material.AIR) continue;
+            inventory.addItem(stack);
+        }
+    }
+
+    private float getTotalPrice(List<ItemStack> itemStacks){
+        float totalPrice = 0;
+        for (ItemStack stack : itemStacks) {
+            if (stack == null || stack.getType() == Material.AIR) continue;
+            float price = getSingleItemPrice(stack);
+            price *= stack.getAmount();
+            totalPrice += price;
+        }
+        return totalPrice;
+    }
+
+    private float getSingleItemPrice(ItemStack itemStack) {
+        NBTItem nbtItem = new NBTItem(itemStack);
+        NBTCompound fishMeta = nbtItem.getCompound("FishMeta");
+        float price = 0;
+        if (fishMeta != null) {
+            float base = fishMeta.getFloat("base");
+            float bonus = fishMeta.getFloat("bonus");
+            float size = fishMeta.getFloat("size");
+            Expression expression = new ExpressionBuilder(formula)
+                    .variables("base", "bonus","size")
+                    .build()
+                    .setVariable("base", base)
+                    .setVariable("bonus", bonus)
+                    .setVariable("size", size);
+            price = (float) expression.evaluate();
+        }
+        if (price == 0) {
+            price = Optional.ofNullable(vanillaPrices.get(itemStack.getType())).orElse(0f);
+        }
+        return price;
+    }
+
+    private void doActions(Player player, float earnings) {
+        if (titleNotification != null) AdventureUtil.playerTitle(
+                player,
+                titleNotification.replace("{money}", String.format("%.2f", earnings)),
+                subtitleNotification.replace("{money}", String.format("%.2f", earnings)),
+                titleIn * 50,
+                titleStay * 50,
+                titleOut * 50
+        );
+        if (msgNotification != null) {
+            AdventureUtil.playerMessage(player, msgNotification.replace("{money}", String.format("%.2f", earnings)));
+        }
+        if (actionbarNotification != null) {
+            AdventureUtil.playerActionbar(player, actionbarNotification.replace("{money}", String.format("%.2f", earnings)));
+        }
+        if (commands != null) {
+            for (String cmd : commands) {
+                Bukkit.getServer().dispatchCommand(Bukkit.getConsoleSender(), cmd.replace("{player}", player.getName()).replace("{money}", String.format("%.2f", earnings)));
+            }
+        }
+        if (ConfigManager.logEarning) {
+            AdventureUtil.consoleMessage("[CustomFishing] Log: " + player.getName() + " earns " + String.format("%.2f", earnings) + " from selling fish");
+        }
+        if (successKey != null) AdventureUtil.playerSound(player, soundSource, successKey, 1, 1);
+        if (ConfigManager.vaultHook) VaultHook.economy.depositPlayer(player, earnings);
+    }
 }
diff --git a/src/main/java/net/momirealms/customfishing/object/fishing/BobberCheckTask.java b/src/main/java/net/momirealms/customfishing/object/fishing/BobberCheckTask.java
index df272716..ed1014fa 100644
--- a/src/main/java/net/momirealms/customfishing/object/fishing/BobberCheckTask.java
+++ b/src/main/java/net/momirealms/customfishing/object/fishing/BobberCheckTask.java
@@ -1,6 +1,5 @@
 package net.momirealms.customfishing.object.fishing;
 
-import com.plotsquared.core.plot.PlotId;
 import net.momirealms.customfishing.CustomFishing;
 import net.momirealms.customfishing.manager.ConfigManager;
 import net.momirealms.customfishing.manager.FishingManager;
@@ -71,8 +70,10 @@ public class BobberCheckTask extends BukkitRunnable {
             return;
         }
         if (fishHook.isInWater()) {
-            List<Loot> possibleLoots = fishingManager.getPossibleWaterLootList(new FishingCondition(fishHook.getLocation(), player), false);
-            fishingManager.getNextLoot(player, bonus, possibleLoots);
+            Bukkit.getScheduler().runTaskAsynchronously(CustomFishing.plugin, () -> {
+                List<Loot> possibleLoots = fishingManager.getPossibleWaterLootList(new FishingCondition(fishHook.getLocation(), player), false);
+                fishingManager.getNextLoot(player, bonus, possibleLoots);
+            });
             stop();
             return;
         }
@@ -106,8 +107,10 @@ public class BobberCheckTask extends BukkitRunnable {
     }
 
     private void randomTime() {
-        List<Loot> possibleLoots = fishingManager.getPossibleLavaLootList(new FishingCondition(fishHook.getLocation(), player), false);
-        fishingManager.getNextLoot(player, bonus, possibleLoots);
+        Bukkit.getScheduler().runTaskAsynchronously(CustomFishing.plugin, () -> {
+            List<Loot> possibleLoots = fishingManager.getPossibleLavaLootList(new FishingCondition(fishHook.getLocation(), player), false);
+            fishingManager.getNextLoot(player, bonus, possibleLoots);
+        });
         cancelTask();
         int random = new Random().nextInt(ConfigManager.lavaMaxTime) + ConfigManager.lavaMinTime;
         random -= lureLevel * 100;
diff --git a/src/main/java/net/momirealms/customfishing/object/loot/DroppedItem.java b/src/main/java/net/momirealms/customfishing/object/loot/DroppedItem.java
index a6767f48..e43ad3ac 100644
--- a/src/main/java/net/momirealms/customfishing/object/loot/DroppedItem.java
+++ b/src/main/java/net/momirealms/customfishing/object/loot/DroppedItem.java
@@ -8,6 +8,9 @@ public class DroppedItem extends Loot{
     private boolean randomDurability;
     private LeveledEnchantment[] randomEnchants;
     private final String material;
+    private String[] size;
+    private float basicPrice;
+    private float sizeBonus;
 
     public DroppedItem(String key, Difficulty difficulty, int time, int weight, String material) {
         super(key, difficulty, time, weight);
@@ -34,4 +37,28 @@ public class DroppedItem extends Loot{
     public String getMaterial() {
         return material;
     }
+
+    public String[] getSize() {
+        return size;
+    }
+
+    public void setSize(String[] size) {
+        this.size = size;
+    }
+
+    public float getBasicPrice() {
+        return basicPrice;
+    }
+
+    public void setBasicPrice(float basicPrice) {
+        this.basicPrice = basicPrice;
+    }
+
+    public float getSizeBonus() {
+        return sizeBonus;
+    }
+
+    public void setSizeBonus(float sizeBonus) {
+        this.sizeBonus = sizeBonus;
+    }
 }
diff --git a/src/main/java/net/momirealms/customfishing/object/loot/Item.java b/src/main/java/net/momirealms/customfishing/object/loot/Item.java
index fdbddea3..d1b79ba6 100644
--- a/src/main/java/net/momirealms/customfishing/object/loot/Item.java
+++ b/src/main/java/net/momirealms/customfishing/object/loot/Item.java
@@ -3,6 +3,7 @@ package net.momirealms.customfishing.object.loot;
 import org.bukkit.Material;
 import org.bukkit.inventory.ItemFlag;
 
+import java.util.ArrayList;
 import java.util.List;
 import java.util.Map;
 
@@ -80,4 +81,20 @@ public class Item {
     public void setNbt(Map<String, Object> nbt) {
         this.nbt = nbt;
     }
+
+    public Item cloneWithPrice(double price){
+        Item newItem = new Item(this.material);
+        if (this.lore != null){
+            List<String> lore = new ArrayList<>();
+            for (String text : this.lore) {
+                lore.add(text.replace("{money}", String.format("%.2f", price)));
+            }
+            newItem.setLore(lore);
+        }
+        if (this.name != null){
+            newItem.setName(this.name.replace("{money}", String.format("%.2f", price)));
+        }
+        newItem.setCustomModelData(this.customModelData);
+        return newItem;
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/net/momirealms/customfishing/object/sell/ContainerPacketListener.java b/src/main/java/net/momirealms/customfishing/object/sell/ContainerPacketListener.java
new file mode 100644
index 00000000..66baca0f
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/object/sell/ContainerPacketListener.java
@@ -0,0 +1,44 @@
+package net.momirealms.customfishing.object.sell;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.reflect.StructureModifier;
+import com.comphenix.protocol.wrappers.WrappedChatComponent;
+import net.kyori.adventure.text.minimessage.MiniMessage;
+import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
+import net.momirealms.customfishing.CustomFishing;
+import net.momirealms.customfishing.integration.papi.PlaceholderManager;
+import net.momirealms.customfishing.manager.SellManager;
+import net.momirealms.customfishing.util.ItemStackUtil;
+import org.bukkit.entity.Player;
+
+public class ContainerPacketListener extends PacketAdapter {
+
+    public ContainerPacketListener() {
+        super(CustomFishing.plugin, PacketType.Play.Server.OPEN_WINDOW);
+    }
+
+    @Override
+    public void onPacketSending(PacketEvent event) {
+        PacketContainer packet = event.getPacket();
+        StructureModifier<WrappedChatComponent> wrappedChatComponentStructureModifier = packet.getChatComponents();
+        WrappedChatComponent component = wrappedChatComponentStructureModifier.getValues().get(0);
+        if (component.getJson().equals("{\"text\":\"{CustomFishing}\"}")) {
+            PlaceholderManager placeholderManager = CustomFishing.plugin.getIntegrationManager().getPlaceholderManager();
+            Player player = event.getPlayer();
+            String text = SellManager.title.replace("{player}", player.getName());
+            if (placeholderManager != null) placeholderManager.parse(player, text);
+            wrappedChatComponentStructureModifier.write(0,
+                WrappedChatComponent.fromJson(
+                    GsonComponentSerializer.gson().serialize(
+                        MiniMessage.miniMessage().deserialize(
+                                ItemStackUtil.replaceLegacy(text)
+                        )
+                    )
+                )
+            );
+        }
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/object/sell/InventoryListener.java b/src/main/java/net/momirealms/customfishing/object/sell/InventoryListener.java
new file mode 100644
index 00000000..b37313c3
--- /dev/null
+++ b/src/main/java/net/momirealms/customfishing/object/sell/InventoryListener.java
@@ -0,0 +1,30 @@
+package net.momirealms.customfishing.object.sell;
+
+import net.momirealms.customfishing.manager.SellManager;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.inventory.*;
+
+public class InventoryListener implements Listener {
+
+    private final SellManager sellManager;
+
+    public InventoryListener(SellManager sellManager) {
+        this.sellManager = sellManager;
+    }
+
+    @EventHandler
+    public void onOpen(InventoryOpenEvent event){
+        sellManager.onOpen(event);
+    }
+
+    @EventHandler
+    public void onClick(InventoryClickEvent event) {
+        sellManager.onClick(event);
+    }
+
+    @EventHandler
+    public void onClose(InventoryCloseEvent event){
+        sellManager.onClose(event);
+    }
+}
diff --git a/src/main/java/net/momirealms/customfishing/util/AdventureUtil.java b/src/main/java/net/momirealms/customfishing/util/AdventureUtil.java
index ada046f9..0b336b2a 100644
--- a/src/main/java/net/momirealms/customfishing/util/AdventureUtil.java
+++ b/src/main/java/net/momirealms/customfishing/util/AdventureUtil.java
@@ -40,14 +40,14 @@ public class AdventureUtil {
     public static void consoleMessage(String s) {
         Audience au = CustomFishing.adventure.sender(Bukkit.getConsoleSender());
         MiniMessage mm = MiniMessage.miniMessage();
-        Component parsed = mm.deserialize(s);
+        Component parsed = mm.deserialize(ItemStackUtil.replaceLegacy(s));
         au.sendMessage(parsed);
     }
 
     public static void playerMessage(Player player, String s) {
         Audience au = CustomFishing.adventure.player(player);
         MiniMessage mm = MiniMessage.miniMessage();
-        Component parsed = mm.deserialize(s);
+        Component parsed = mm.deserialize(ItemStackUtil.replaceLegacy(s));
         au.sendMessage(parsed);
     }
 
@@ -55,7 +55,7 @@ public class AdventureUtil {
         Audience au = CustomFishing.adventure.player(player);
         MiniMessage mm = MiniMessage.miniMessage();
         Title.Times times = Title.Times.times(Duration.ofMillis(in), Duration.ofMillis(duration), Duration.ofMillis(out));
-        Title title = Title.title(mm.deserialize(s1), mm.deserialize(s2), times);
+        Title title = Title.title(mm.deserialize(ItemStackUtil.replaceLegacy(s1)), mm.deserialize(ItemStackUtil.replaceLegacy(s2)), times);
         au.showTitle(title);
     }
 
@@ -69,7 +69,7 @@ public class AdventureUtil {
     public static void playerActionbar(Player player, String s) {
         Audience au = CustomFishing.adventure.player(player);
         MiniMessage mm = MiniMessage.miniMessage();
-        au.sendActionBar(mm.deserialize(s));
+        au.sendActionBar(mm.deserialize(ItemStackUtil.replaceLegacy(s)));
     }
 
     public static void playerSound(Player player, Sound.Source source, Key key, float volume, float pitch) {
diff --git a/src/main/java/net/momirealms/customfishing/util/ConfigUtil.java b/src/main/java/net/momirealms/customfishing/util/ConfigUtil.java
index 344a2112..963c41bc 100644
--- a/src/main/java/net/momirealms/customfishing/util/ConfigUtil.java
+++ b/src/main/java/net/momirealms/customfishing/util/ConfigUtil.java
@@ -40,6 +40,8 @@ public class ConfigUtil {
         CustomFishing.plugin.getTotemManager().load();
         CustomFishing.plugin.getIntegrationManager().unload();
         CustomFishing.plugin.getIntegrationManager().load();
+        CustomFishing.plugin.getSellManager().unload();
+        CustomFishing.plugin.getSellManager().load();
         try {
             Reflection.load();
         }
diff --git a/src/main/java/net/momirealms/customfishing/util/ItemStackUtil.java b/src/main/java/net/momirealms/customfishing/util/ItemStackUtil.java
index f2149297..cad2cd70 100644
--- a/src/main/java/net/momirealms/customfishing/util/ItemStackUtil.java
+++ b/src/main/java/net/momirealms/customfishing/util/ItemStackUtil.java
@@ -51,7 +51,6 @@ public class ItemStackUtil {
             NBTCompound display = nbtItem.addCompound("display");
             String name  = item.getName();
             if (name.contains("&") || name.contains("§")){
-                name = name.replaceAll("&","§");
                 name = replaceLegacy(name);
             }
             display.setString("Name", GsonComponentSerializer.gson().serialize(MiniMessage.miniMessage().deserialize("<!i>" + name)));
@@ -61,7 +60,6 @@ public class ItemStackUtil {
             List<String> lore = display.getStringList("Lore");
             item.getLore().forEach(line -> {
                 if (line.contains("&") || line.contains("§")){
-                    line = line.replaceAll("&","§");
                     line = replaceLegacy(line);
                 }
                 lore.add(GsonComponentSerializer.gson().serialize(MiniMessage.miniMessage().deserialize("<!i>" + line)));
@@ -200,6 +198,40 @@ public class ItemStackUtil {
         return true;
     }
 
+    public static void addExtraMeta(ItemStack itemStack, DroppedItem droppedItem) {
+        NBTItem nbtItem = new NBTItem(itemStack);
+        boolean changed = replaceSizeLore(droppedItem.getSize(), nbtItem);
+        if (droppedItem.getBasicPrice() != 0) {
+            NBTCompound fishMetaCompound = nbtItem.addCompound("FishMeta");
+            fishMetaCompound.setFloat("base", droppedItem.getBasicPrice());
+            changed = true;
+        }
+        if (droppedItem.getSizeBonus() != 0) {
+            NBTCompound fishMetaCompound = nbtItem.addCompound("FishMeta");
+            fishMetaCompound.setFloat("bonus", droppedItem.getSizeBonus());
+            changed = true;
+        }
+        if (changed) {
+            itemStack.setItemMeta(nbtItem.getItem().getItemMeta());
+        }
+    }
+
+    private static boolean replaceSizeLore(String[] sizes, NBTItem nbtItem) {
+        if (sizes == null) return false;
+        float min = Float.parseFloat(sizes[0]);
+        float max = Float.parseFloat(sizes[1]);
+        if (max - min < 0) return false;
+        float size = (float) (min + Math.random() * (max - min));
+        String sizeText = String.format("%.1f", size);
+        NBTCompound nbtCompound = nbtItem.getCompound("display");
+        if (nbtCompound == null || !nbtCompound.hasKey("Lore")) return false;
+        List<String> lore = nbtCompound.getStringList("Lore");
+        lore.replaceAll(s -> s.replace("{size}", sizeText));
+        NBTCompound fishMetaCompound = nbtItem.addCompound("FishMeta");
+        fishMetaCompound.setFloat("size", size);
+        return true;
+    }
+
     public static Map<String, Object> compoundToMap(NBTCompound nbtCompound){
         Map<String, Object> map = new HashMap<>();
         nbtCompound.getKeys().forEach(key -> {
@@ -243,7 +275,7 @@ public class ItemStackUtil {
 
     public static String replaceLegacy(String s) {
         StringBuilder stringBuilder = new StringBuilder();
-        char[] chars = s.toCharArray();
+        char[] chars = s.replaceAll("&","§").toCharArray();
         for (int i = 0; i < chars.length; i++) {
             if (chars[i] == '§') {
                 if (i + 1 < chars.length) {
diff --git a/src/main/resources/competition.yml b/src/main/resources/competition.yml
index c2ef726d..922de0a0 100644
--- a/src/main/resources/competition.yml
+++ b/src/main/resources/competition.yml
@@ -10,6 +10,7 @@ example:
   start-time:
     - '12:30'
     - '18:30'
+
   #seconds
   duration: 300
 
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index 926f3de5..5079d55c 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -1,11 +1,13 @@
 # don't change
-config-version: '9'
-
+config-version: '10'
 
+# cn/en/es
 lang: en
 
-
+# Plugin hooks
 integration:
+  # Sell fish
+  Vault: true
   # Skill-xp
   mcMMO: false
   MMOCore: false
@@ -15,8 +17,19 @@ integration:
   # Season condition
   CustomCrops: false
   RealisticSeasons: false
+  # Prevent players from activating totems in some regions
+  Residence: false
+  WorldGuard: false
+  Kingdoms: false
+  GriefDefender: false
+  PlotSquared: false
+  Towny: false
+  Lands: false
+  GriefPrevention: false
+  CrashClaim: false
+  BentoBox: false
 
-
+# Worlds where fishing mechanic takes effects
 worlds:
   # Mode: whitelist/blacklist
   mode: whitelist
@@ -24,21 +37,17 @@ worlds:
     - world
     - world_nether
 
-
+# Mechanic settings
 mechanics:
-
   other-loots:
-
     # Should other loots have the same fishing mechanic CustomFishing provides
     fishing-bar: true
-
     vanilla:
       # Vanilla loot is available only when 'double-reel-in' is true
       enable: true
       # 0.4 means 40% of the loots are from vanilla
       # and 60% are from CustomFishing Loot system
       ratio: 0.4
-
     mcMMO:
       # mcMMO treasure system
       # chance represents the chance to try to be a mcMMO treasure
@@ -46,42 +55,35 @@ mechanics:
       # mcMMO has a complex treasure system
       enable: false
       chance: 0.5
-
-  # The same to vanilla (refer to the wiki)
+  # The same to vanilla mechanic (refer to the wiki)
   # https://technical-minecraft.fandom.com/wiki/Fishing
   need-open-water: false
-
   need-special-rod:
     # Players must use rods with CustomFishing's NBT Tags to get loots in CustomFishing but they can experience the special fishing mechanic.
     for-loots: false
     # Players must use rods with CustomFishing's NBT Tags to experience the special fishing mechanic. Otherwise they can only fish in a vanilla way
     to-fish: false
-
   # does rod lose durability when player successfully fish
   rod-lose-durability: true
-
-  # Cool down time of fish finder(ms)
-  fishfinder-cooldown: 3000
-
   # Competition
   fishing-competition:
     enable: true
+    # Enable redis server for syncing data between servers
     redis: false
-
   # Fishing bag is a place where players can store their baits, utils, rods (Fish optional)
   fishing-bag:
     enable: true
     # This would add additional NBT Tags to the fish
     can-store-fish: false
-    # File/SQLite/MySql
+    # File/MySql
     data-storage-mode: File
-
+  # Lava fishing settings
   lava-fishing:
     # ticks
-    min-time: 100
-    max-time: 600
-
+    min-wait-time: 100
+    max-wait-time: 600
 
+# Fishing result titles
 titles:
   success:
     title:
@@ -98,7 +100,7 @@ titles:
       out: 10
   failure:
     title:
-      - '<red>Real food!</red>'
+      - '<red>Be concentrated!</red>'
       - '<red>Failure!</red>'
       - '<red>Try next time!</red>'
     subtitle:
@@ -109,20 +111,17 @@ titles:
       stay: 30
       out: 10
 
-
-
+# Other settings
 other-settings:
-
   # MONITOR HIGHEST HIGH NORMAL LOW LOWEST
   event-priority: NORMAL
-
   # If enabled, players would not be able to get job exp in vanilla way
   disable-JobsReborn-fishing-exp: false
-
   # Convert MMOItems' rod into CustomFishing's rod
   # keep the same key name both in MMOItems and CustomFishing so rods can extend the bonus of those in CustomFishing
   convert-MMOItems-rods: false
-
   # Prevent other players to pick up your fishing loot
   # This is useful for players to fish in a public area
-  prevent-other-players-pick-up-loot: false
\ No newline at end of file
+  prevent-other-players-pick-up-loot: false
+  # Log the money player get from selling the fish in the console
+  log-earnings: true
\ No newline at end of file
diff --git a/src/main/resources/database.yml b/src/main/resources/database.yml
index 24134efc..7512884a 100644
--- a/src/main/resources/database.yml
+++ b/src/main/resources/database.yml
@@ -19,21 +19,9 @@ MySQL:
     maximum-lifetime: 180000
     idle-timeout: 60000
 
-# SQLite settings
-SQLite:
-  file-name: data
-  table: customfishing_data
-
-# MongoDB settings
-MongoDB:
-  client: 'mongodb://localhost:3307'
-  database: customfishing
-  collection: customfishing.statistics
-
 # Redis server
 # Sync competition scores between servers without lag!
 Redis:
-  enable: false
   host: localhost
   port: 6379
   MaxTotal: 10
diff --git a/src/main/resources/loots/example.yml b/src/main/resources/loots/example.yml
index 3ddbd98f..276bcb8e 100644
--- a/src/main/resources/loots/example.yml
+++ b/src/main/resources/loots/example.yml
@@ -17,7 +17,7 @@ rainbow_fish:
   score: 10
   # Specify the bar. If not specified, it will be random
   layout:
-    - bar1
+    - bar_1
   # Difficulty
   # '1' represents the pointer moves every 1 tick
   # '7' represents the pointer moves 7 pixels each time
@@ -34,8 +34,17 @@ rainbow_fish:
     name: '<rainbow>✖Example Rainbow Fish✖</rainbow>'
     lore:
       - '<gray>This is a <font:uniform>rainbow fish!'
+      - '<gray>It is {size}cm long!'
   custom-model-data: 1
 
+  # Optional
+  size: 10~200
+
+  # Optional
+  price:
+    base: 50
+    bonus: 0.3
+
   # Custom NBT tags
   # If you are not sure about the NBT tag. You can use command '/cfishing import xxx'
   # (Int) (Byte) (String) (Float) (String) (Double) (Short) (Long) (UUID) (Boolean) (IntArray) (ByteArray)
@@ -43,11 +52,6 @@ rainbow_fish:
     itemsadder:
       namespace: '(String) momirealms'
       id: '(String) rainbow_fish'
-    SomeNBT:
-      NBTS:
-        byte: '(Byte) 127'
-        float: '(Float) 3.14159'
-    Price: '(Double) 10'
 
   # Available events: success/failure/hook
   # Available actions: message/command/exp/mending/skill-xp
diff --git a/src/main/resources/messages/messages_cn.yml b/src/main/resources/messages/messages_cn.yml
index ffca6f24..375f33d6 100644
--- a/src/main/resources/messages/messages_cn.yml
+++ b/src/main/resources/messages/messages_cn.yml
@@ -14,7 +14,6 @@ messages:
   lack-args: '参数不足.'
   none-args: '非空参数!'
   invalid-args: '无效参数!'
-  cooldown: '你使用找鱼器的速度太快了!'
   possible-loots: '此处可能钓到: '
   split-char: ','
   no-loot: '这个地方什么鱼都没有!'
@@ -28,5 +27,5 @@ messages:
   force-competition-cancel: '已强制取消当前正在进行的比赛!'
   hook-other-entity: '你的鱼钩被其他生物钩走了!'
   no-rod: '你必须使用特殊鱼竿才能获得战利品!'
-  no-player: '无'
-  no-score: '无'
\ No newline at end of file
+  no-player: '虚位以待'
+  no-score: '无分数'
\ No newline at end of file
diff --git a/src/main/resources/messages/messages_en.yml b/src/main/resources/messages/messages_en.yml
index a6544dcb..0f29b439 100644
--- a/src/main/resources/messages/messages_en.yml
+++ b/src/main/resources/messages/messages_en.yml
@@ -14,7 +14,6 @@ messages:
   lack-args: 'Insufficient parameters.'
   none-args: 'None arguments!'
   invalid-args: 'Invalid arguments!'
-  cooldown: 'You''re using the fish finder too fast!'
   possible-loots: 'Possible loots here: '
   split-char: ', '
   no-loot: 'There''s no fish in this place!'
diff --git a/src/main/resources/messages/messages_es.yml b/src/main/resources/messages/messages_es.yml
index f9d4ed16..561a3388 100644
--- a/src/main/resources/messages/messages_es.yml
+++ b/src/main/resources/messages/messages_es.yml
@@ -14,7 +14,6 @@ messages:
   lack-args: 'Parámetros insuficientes.'
   none-args: '¡Ningún argumento!'
   invalid-args: 'Argumentos no válidos'
-  cooldown: '¡Estás usando el buscador de peces demasiado rápido!'
   possible-loots: 'Posible pesca aquí: '
   split-char: ', '
   no-loot: '¡No hay peces en este lugar!'
diff --git a/src/main/resources/plugin.yml b/src/main/resources/plugin.yml
index 5837e011..7cd0dfb3 100644
--- a/src/main/resources/plugin.yml
+++ b/src/main/resources/plugin.yml
@@ -19,6 +19,8 @@ softdepend:
   - MMOItems
   - eco
   - Jobs
+  - Vault
+
 commands:
   customfishing:
     usage: /customfishing
@@ -29,4 +31,23 @@ commands:
   fishingbag:
     usage: /fishingbag open
     description: fishing bag command
-    permission: customfishing.user
\ No newline at end of file
+    permission: customfishing.fishingbag
+  sellfish:
+    usage: /sellfish
+    description: fishing bag command
+    permission: customfishing.sellfish
+
+permissions:
+  customfishing.*:
+    description: Gives access to all customfishing commands
+    children:
+      customfishing.admin: true
+      customfishing.fishingbag: true
+      customfishing.sellfish: true
+
+  customfishing.admin:
+    default: op
+  customfishing.fishingbag:
+    default: true
+  customfishing.sellfish:
+    default: true
\ No newline at end of file
diff --git a/src/main/resources/sell-fish.yml b/src/main/resources/sell-fish.yml
new file mode 100644
index 00000000..95951b11
--- /dev/null
+++ b/src/main/resources/sell-fish.yml
@@ -0,0 +1,89 @@
+container-title: '<gradient:#A52A2A:#800000:#A52A2A>Sell Fish</gradient>'
+
+rows: 6
+
+price-formula: '{base} + {bonus} * {size}'
+
+sounds:
+  open: minecraft:block.chest.open
+  close: minecraft:block.chest.close
+  success: minecraft:block.amethyst_block.break
+  deny: minecraft:block.anvil.destroy
+  confirm: minecraft:entity.villager.trade
+  type: player
+
+actions:
+  message:
+    enable: true
+    text: 'You earned {money} from selling the fish'
+  title:
+    enable: true
+    title: '<green>Success'
+    subtitle: 'You earned {money} from selling the fish'
+    in: 20
+    stay: 40
+    out: 20
+  actionbar:
+    enable: true
+    text: 'You earned {money} from selling the fish'
+  commands:
+    enable: false
+    value:
+      - 'money give {player} {money}'
+
+functional-icons:
+  slots:
+    - 50
+  sell:
+    material: IRON_BLOCK
+    display:
+      name: '<#00CED1><bold>● <bold:false>Sell the fish'
+      lore:
+        - '<font:uniform><gradient:#E6E6FA:#48D1CC:#E6E6FA>You will gain {money}$</gradient></font>'
+    custom-model-data: 1
+  deny:
+    material: REDSTONE_BLOCK
+    display:
+      name: '<red><bold>● <bold:false>Denied'
+      lore:
+        - '<font:uniform><gradient:#E6E6FA:red:#E6E6FA>Nothing to sell!</gradient></font>'
+    custom-model-data: 1
+
+
+decorative-icons:
+  glass-pane:
+    material: BLACK_STAINED_GLASS_PANE
+    display:
+      name: ' '
+    slot:
+      - 1
+      - 2
+      - 3
+      - 4
+      - 5
+      - 6
+      - 7
+      - 8
+      - 9
+      - 10
+      - 18
+      - 19
+      - 27
+      - 28
+      - 36
+      - 37
+      - 45
+      - 46
+      - 47
+      - 48
+      - 49
+      - 51
+      - 52
+      - 53
+      - 54
+
+vanilla-item-price:
+  COD: 10
+  PUFFERFISH: 10
+  SALMON: 10
+  TROPICAL_FISH: 10
\ No newline at end of file