diff --git a/src/lib/ChatScreens/Chat.svelte b/src/lib/ChatScreens/Chat.svelte
index 5084df25..9d973bce 100644
--- a/src/lib/ChatScreens/Chat.svelte
+++ b/src/lib/ChatScreens/Chat.svelte
@@ -60,7 +60,7 @@
     }
 
     function displaya(message:string){
-        msgDisplay = risuChatParser(message, {chara: name, chatID: idx, rmVar: true})
+        msgDisplay = risuChatParser(message, {chara: name, chatID: idx, rmVar: true, visualize: true})
     }
 
     const setStatusMessage = (message:string, timeout:number = 0)=>{
diff --git a/src/lib/Setting/Pages/AdvancedSettings.svelte b/src/lib/Setting/Pages/AdvancedSettings.svelte
index d6f6bdec..5d26f02f 100644
--- a/src/lib/Setting/Pages/AdvancedSettings.svelte
+++ b/src/lib/Setting/Pages/AdvancedSettings.svelte
@@ -89,6 +89,11 @@
         <Help key="experimental"/>
     </Check>
 </div>
+<div class="flex items-center mt-4">
+    <Check bind:check={$DataBase.chainOfThought} name="Chain of Thoughts">
+        <Help key="experimental"/>
+    </Check>
+</div>
 <div class="flex items-center mt-4">
     <Check check={$DataBase.tpo} name="Alpha DevMode" onChange={() => {
         // access code is "tendo"
diff --git a/src/ts/parser.ts b/src/ts/parser.ts
index 79f47ecd..43a2f716 100644
--- a/src/ts/parser.ts
+++ b/src/ts/parser.ts
@@ -766,10 +766,12 @@ export function risuChatParser(da:string, arg:{
     var?:{[key:string]:string}
     tokenizeAccurate?:boolean
     consistantChar?:boolean
+    visualize?:boolean
 } = {}):string{
     const chatID = arg.chatID ?? -1
     const db = arg.db ?? get(DataBase)
     const aChara = arg.chara
+    const visualize = arg.visualize ?? false
     let chara:character|string = null
 
     if(aChara){
@@ -880,6 +882,33 @@ export function risuChatParser(da:string, arg:{
                         }
                         break
                     }
+                    case 'Thoughts':{
+                        if(!visualize){
+                            nested[0] += `<${dat}>`
+                            break
+                        }
+                        if(!commentMode){
+                            commentMode = true
+                            commentLatest = nested.map((f) => f)
+                            if(commentLatest[0].endsWith('\n')){
+                                commentLatest[0] = commentLatest[0].substring(0, commentLatest[0].length - 1)
+                            }
+                            commentV = new Uint8Array(v)
+                        }
+                        break
+                    }
+                    case '/Thoughts':{
+                        if(!visualize){
+                            nested[0] += `<${dat}>`
+                            break
+                        }
+                        if(commentMode){
+                            nested = commentLatest
+                            v = commentV
+                            commentMode = false
+                        }
+                        break
+                    }
                     default:{
                         const mc = (pureMode) ? null : smMatcher(dat, matcherObj)
                         nested[0] += mc ?? `<${dat}>`
diff --git a/src/ts/process/index.ts b/src/ts/process/index.ts
index 7d8946f5..56683414 100644
--- a/src/ts/process/index.ts
+++ b/src/ts/process/index.ts
@@ -259,6 +259,13 @@ export async function sendChat(chatProcessIndex = -1,arg:{chatAdditonalTokens?:n
         })
     }
 
+    if(db.chainOfThought){
+        unformated.postEverything.push({
+            role: 'system',
+            content: `<instruction>before responding everything, Think step by step how would you respond inside <Thoughts> xml tag.</instruction>`
+        })
+    }
+
     {
         let description = risuChatParser((db.promptPreprocess ? db.descriptionPrefix: '') + currentChar.desc, {chara: currentChar})
 
diff --git a/src/ts/storage/database.ts b/src/ts/storage/database.ts
index 17d436e4..3613d15f 100644
--- a/src/ts/storage/database.ts
+++ b/src/ts/storage/database.ts
@@ -560,6 +560,7 @@ export interface Database{
         projectId: string
     }
     mistralKey?:string
+    chainOfThought?:boolean
 }
 
 export interface customscript{