diff --git a/docs/03-setup-special-feature/03-respin.md b/docs/03-setup-special-feature/03-respin.md
index ba3ac2b..fe40729 100644
--- a/docs/03-setup-special-feature/03-respin.md
+++ b/docs/03-setup-special-feature/03-respin.md
@@ -1,67 +1,74 @@
 ---
 sidebar_position: 3
 ---
+# Respin Feature
 
-# Respin
+### Overview
+**Respin** is a bonus mechanic in slot games that allows players to re-spin selected reels without restarting the full spin.  
+It typically triggers after a specific in-game condition (e.g. near-win or bonus hit) and enhances player engagement.
 
-## Overview
-The Respin feature is a popular mechanic in modern slot machine games that allows players to spin one or more reels again without restarting the entire game round.
+> Respin ends when the respin counter reaches **zero**.
 
-![Respin Overview](./img/respin/overview.png)
+```mermaid
+stateDiagram-v2
+    Spin --> SpinEnd 
+    Spin --> Trigger_Respin : case Special
 
-### Main Scene
+    SpinEnd --> Trigger_Respin : No Win
+    SpinEnd --> Win
+    Win --> Win_Complete : case normal
+    Win_Complete --> Trigger_Respin
+    ```
+---
 
-#### Start Respin
+### Main Scene Integration
 
-The **Respin** feature usually occurs after a specific win or condition is met.
+#### Triggering Respin
+- Triggered by game logic after a win or specific pattern.
+- Node setup required in Scene graph.
 
-**Scenes**
-|   Description |     Image     |
-|--------------------------|------------------------------------|
-|Create Respin Feature Node|![Trigger](./img/respin/node-trigger-in-scenes.png)|
+| Action | Image |
+|--------|-------|
+| Create Respin Trigger Node | ![Trigger](./img/respin/node-trigger-in-scenes.png) |
 
-1. **Respin Trigger Result**
+#### Respin Flow
+1. **Trigger Respin Result**  
+   ![Trigger](./img/respin/trigger.png)
 
-![Trigger](./img/respin/trigger.png)
+2. **Re-trigger Respin**  
+   ![Retrigger](./img/respin/retrigger.png)
+   
+3. **Keep Symbols Static (for symbol holding logic)**  
+   ![Keep Symbols](./img/respin/static-symbols-respin.png)
 
-2. **Respin Re-Trigger Result**
+4. **Display Counter**  
+   Show number of respins remaining.  
+   ![Counter](./img/respin/respin-left.png)
 
-![ReTrigger](./img/respin/retrigger.png)
+---
 
-3.  **Respin Counter**
+### Server Communication
 
-|       Description     |     Image     |
-|-----------------------|------------------------------------|
-|   Number of respins   |![Respin Left](./img/respin/respin-left.png)|
+#### Respin Event Handling
+- Override class: `hyper-gaming-server-handler`
 
-The respin feature ends when the number of respins reaches **zero**, and the game returns to the **normal mode**.
+| Process | Image |
+|---------|-------|
+| Listen for event: `"respins" | ![Script](./img/respin/handle-event.png) |
+| Trigger Data from Server | ![Trigger](./img/respin/handle-trigger.png) |
+| Re-trigger Data | ![Retrigger](./img/respin/handle-retrigger.png) |
 
-#### Handle Script Processes Data Respin 
+---
 
-1. Handle Respin Response Event from Server:
-- Override the class: `hyper-gaming-server-handler`
-- The event name is usually: `respins`
-
-![Respin Left](./img/respin/handle-event.png)
-
-**Processes** :
-
-1. Trigger Data
-
-![Respin Trigger](./img/respin/handle-trigger.png)
-
-2. Re-Trigger
-
-![Respin Re-Trigger](./img/respin/handle-retrigger.png)
-
-#### Handle Script Respin Panel
-
-- create class `feature-respin` override the class: `feature-game`: handle panel respin and manager ui feature respin. 
-
-![Script Trigger Retrigger](./img/respin/script-feature-respin.png)
-
-- add script trigger / retrigger
-
-![Script Trigger Retrigger](./img/respin/script-trigger-retrigger.png)
+### UI & Feature Management
 
+#### Feature Class Setup
+- Create `feature-respin` class extending `feature-game`
+- Responsibilities:
+  - Manage respin panel UI
+  - Handle trigger & retrigger logic
 
+| Action | Image |
+|--------|-------|
+| Script: Feature Panel | ![Script](./img/respin/script-feature-respin.png) |
+| Script: Trigger/Retrigger | ![Trigger](./img/respin/script-trigger-retrigger.png) |