diff --git a/src/Bot/BotInstance.cs b/src/Bot/BotInstance.cs
index 9b02771..851835f 100644
--- a/src/Bot/BotInstance.cs
+++ b/src/Bot/BotInstance.cs
@@ -15,7 +15,14 @@ public sealed class BotInstance(Config config)
     private static void RegisterFunctions()
     {
         LoveYou loveYou = new();
+        WannaCao wannaCao = new();
+        Cum cum = new();
+        Choose choose = new();
+
         loveYou.Register();
+        wannaCao.Register();
+        cum.Register();
+        choose.Register();
     }
 
     private void RegisterEvents()
diff --git a/src/Bot/Telegram/TgBot.cs b/src/Bot/Telegram/TgBot.cs
index d1a5614..a079486 100644
--- a/src/Bot/Telegram/TgBot.cs
+++ b/src/Bot/Telegram/TgBot.cs
@@ -53,7 +53,7 @@ private async Task SendMessageAsync(long id, MessagePair messages, int? threadId
     {
         if (messages.Media is null)
         {
-            await _bot.SendTextMessageAsync(id, messages.Text!.Text, threadId, ParseMode.MarkdownV2,
+            await _bot.SendTextMessageAsync(id, messages.Text!.Text, threadId,
                 replyParameters: source is null ? default(ReplyParameters) : source);
             return;
         }
@@ -62,11 +62,11 @@ await _bot.SendTextMessageAsync(id, messages.Text!.Text, threadId, ParseMode.Mar
         switch (messages.Media.Type)
         {
             case MediaType.Audio:
-                await _bot.SendAudioAsync(id, file, threadId, messages.Text?.Text, ParseMode.MarkdownV2,
+                await _bot.SendAudioAsync(id, file, threadId, messages.Text?.Text,
                     replyParameters: source is null ? default(ReplyParameters) : source);
                 break;
             case MediaType.Photo:
-                await _bot.SendPhotoAsync(id, file, threadId, messages.Text?.Text, ParseMode.MarkdownV2,
+                await _bot.SendPhotoAsync(id, file, threadId, messages.Text?.Text,
                     replyParameters: source is null ? default(ReplyParameters) : source);
                 break;
             default:
diff --git a/src/Functions/Choose.cs b/src/Functions/Choose.cs
new file mode 100644
index 0000000..450dff0
--- /dev/null
+++ b/src/Functions/Choose.cs
@@ -0,0 +1,56 @@
+using DXKumaBot.Bot;
+using DXKumaBot.Bot.Message;
+using System.Text.RegularExpressions;
+
+namespace DXKumaBot.Functions;
+
+public sealed partial class Choose : RegexFunctionBase
+{
+    protected override async Task Main(object? sender, MessageReceivedEventArgs args)
+    {
+        Match match = MessageRegex().Match(args.Text);
+        HashSet<string> values = [];
+        foreach (Group group in match.Groups)
+        {
+            if (group.Index is 0)
+            {
+                continue;
+            }
+
+            foreach (Capture capture in group.Captures)
+            {
+                values.Add(capture.Value);
+            }
+        }
+
+        switch (values.Count)
+        {
+            case 0:
+            {
+                string filePath = Path.Combine("Static", nameof(Choose), "1.png");
+                MediaMessage message = new(MediaType.Photo, filePath);
+                await args.Reply(new("没有选项要让迪拉熊怎么选嘛~", message));
+                break;
+            }
+            case 1:
+            {
+                string filePath = Path.Combine("Static", nameof(Choose), "1.png");
+                MediaMessage message = new(MediaType.Photo, filePath);
+                await args.Reply(new("就一个选项要让迪拉熊怎么选嘛~", message));
+                break;
+            }
+            default:
+            {
+                int index = Random.Shared.Next(values.Count);
+                string filePath = Path.Combine("Static", nameof(Choose), "0.png");
+                MediaMessage message = new(MediaType.Photo, filePath);
+                await args.Reply(new($"迪拉熊建议你选择“{values.ElementAt(index)}”呢~", message));
+                break;
+            }
+        }
+    }
+
+    [GeneratedRegex("^(?:.*?是)(.+?)(?:还是(.+?))+$",
+        RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline)]
+    protected override partial Regex MessageRegex();
+}
\ No newline at end of file
diff --git a/src/Functions/Cum.cs b/src/Functions/Cum.cs
new file mode 100644
index 0000000..2589802
--- /dev/null
+++ b/src/Functions/Cum.cs
@@ -0,0 +1,20 @@
+using DXKumaBot.Bot;
+using DXKumaBot.Bot.Message;
+using DXKumaBot.Utils;
+using System.Text.RegularExpressions;
+
+namespace DXKumaBot.Functions;
+
+public sealed partial class Cum : RegexFunctionBase
+{
+    protected override async Task Main(object? sender, MessageReceivedEventArgs args)
+    {
+        int index = Random.Shared.Choose([9, 1]);
+        string filePath = Path.Combine("Static", nameof(Cum), $"{index}.png");
+        MediaMessage message = new(MediaType.Photo, filePath);
+        await args.Reply(message);
+    }
+
+    [GeneratedRegex("dlxcum", RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline)]
+    protected override partial Regex MessageRegex();
+}
\ No newline at end of file
diff --git a/src/Functions/LoveYou.cs b/src/Functions/LoveYou.cs
index b4940b2..ce8ef4a 100644
--- a/src/Functions/LoveYou.cs
+++ b/src/Functions/LoveYou.cs
@@ -8,7 +8,7 @@ public sealed partial class LoveYou : RegexFunctionBase
 {
     protected override async Task Main(object? sender, MessageReceivedEventArgs args)
     {
-        string filePath = Path.Combine("Static", "LoveYou", "0.png");
+        string filePath = Path.Combine("Static", nameof(LoveYou), "0.png");
         MediaMessage message = new(MediaType.Photo, filePath);
         await args.Reply(new("迪拉熊也喜欢你❤️", message));
     }
diff --git a/src/Functions/WannaCao.cs b/src/Functions/WannaCao.cs
new file mode 100644
index 0000000..1fb8b95
--- /dev/null
+++ b/src/Functions/WannaCao.cs
@@ -0,0 +1,37 @@
+using DXKumaBot.Bot;
+using DXKumaBot.Bot.Message;
+using DXKumaBot.Utils;
+using System.Text.RegularExpressions;
+
+namespace DXKumaBot.Functions;
+
+public sealed partial class WannaCao : RegexFunctionBase
+{
+    private readonly (string, int)[] _replies =
+    [
+        ("变态！！！", 0),
+        ("走开！！！", 0),
+        ("别靠近迪拉熊！！！", 0),
+        ("迪拉熊不和你玩了！", 0),
+        ("信不信迪拉熊吃你绝赞！", 0),
+        ("信不信迪拉熊吃你星星！", 0),
+        ("你不能这样对迪拉熊！", 0),
+        ("迪拉熊不想理你了，哼！", 0),
+        ("不把白潘AP了就别想！", 0),
+        ("……你会对迪拉熊负责的，对吧？", 1)
+    ];
+
+    private readonly int[] _weights = [11, 11, 11, 11, 11, 11, 11, 11, 11, 1];
+
+    protected override async Task Main(object? sender, MessageReceivedEventArgs args)
+    {
+        int index = Random.Shared.Choose(_weights);
+        (string Text, int PhotoIndex) reply = _replies[index];
+        string filePath = Path.Combine("Static", nameof(WannaCao), $"{reply.PhotoIndex}.png");
+        MediaMessage message = new(MediaType.Photo, filePath);
+        await args.Reply(new(reply.Text, message));
+    }
+
+    [GeneratedRegex("^(香草|想草)(迪拉熊|dlx)$", RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline)]
+    protected override partial Regex MessageRegex();
+}
\ No newline at end of file
diff --git a/src/Utils/RandomExtensions.cs b/src/Utils/RandomExtensions.cs
new file mode 100644
index 0000000..aa41b67
--- /dev/null
+++ b/src/Utils/RandomExtensions.cs
@@ -0,0 +1,20 @@
+namespace DXKumaBot.Utils;
+
+public static class RandomExtensions
+{
+    public static int Choose(this Random random, IList<int> weights)
+    {
+        int totalWeight = weights.Sum();
+        int randomResult = random.Next(totalWeight);
+        for (int index = 0; index < weights.Count; index++)
+        {
+            randomResult -= weights[index];
+            if (randomResult < weights[index])
+            {
+                return index;
+            }
+        }
+
+        return -1;
+    }
+}
\ No newline at end of file