diff --git a/source/main.exe b/source/main.exe
deleted file mode 100644
index 2a45014..0000000
Binary files a/source/main.exe and /dev/null differ
diff --git a/source/main.py b/source/main.py
index baaf3c6..fc10685 100644
--- a/source/main.py
+++ b/source/main.py
@@ -62,6 +62,13 @@ app_data = {
             "install_path": "NEKOPARA Vol. 4/vol4adult.xp3",
             "plugin_path": "vol.4/vol4adult.xp3",
         },
+        "NEKOPARA After": {
+            "exe": "nekopara_after.exe",
+            "hash": "eb26ff6850096a240af8340ba21c5c3232e90f29fb8191e24b6ce701acae0aa9",
+            "install_path": "NEKOPARA After/afteradult.xp3",
+            "plugin_path": "after/afteradult.xp3",
+            "sig_path": "after/afteradult.xp3.sig"
+        },
     },
 }
 
@@ -187,6 +194,7 @@ class AdminPrivileges:
             "nekopara_vol2.exe",
             "NEKOPARAvol3.exe",
             "nekopara_vol4.exe",
+            "nekopara_after.exe",
         ]
 
     def is_admin(self):
@@ -221,7 +229,7 @@ class AdminPrivileges:
                     f"权限检测 {APP_NAME}",
                     "\n无法获取管理员权限，程序将退出\n",
                     QMessageBox.StandardButton.Ok,
-                )
+                    )
                 msg_box.exec()
                 sys.exit(1)
 
@@ -331,6 +339,7 @@ class MainWindow(QMainWindow):
         # 初始化功能变量
         self.selected_folder = ""
         self.installed_status = {f"NEKOPARA Vol.{i}": False for i in range(1, 5)}
+        self.installed_status["NEKOPARA After"] = False  # 添加After的状态
         self.download_queue = deque()
         self.current_download_thread = None
         self.hash_manager = HashManager(BLOCK_SIZE)
@@ -388,10 +397,12 @@ class MainWindow(QMainWindow):
             response = requests.get(CONFIG_URL, headers=headers, timeout=10)
             response.raise_for_status()
             config_data = response.json()
-            if not all(f"vol.{i+1}.data" in config_data for i in range(4)):
+            if not all(f"vol.{i+1}.data" in config_data for i in range(4)) or "after.data" not in config_data:
                 raise ValueError("配置文件数据异常")
             return {
                 f"vol{i+1}": config_data[f"vol.{i+1}.data"]["url"] for i in range(4)
+            } | {
+                "after": config_data["after.data"]["url"]
             }
         except requests.exceptions.RequestException as e:
             status_code = e.response.status_code if e.response is not None else "未知"
@@ -469,7 +480,18 @@ class MainWindow(QMainWindow):
                 QApplication.processEvents()
                 with py7zr.SevenZipFile(_7z_path, mode="r") as archive:
                     archive.extractall(path=PLUGIN)
+                
+                # 创建游戏目录(如果不存在)
+                os.makedirs(game_folder, exist_ok=True)
+                
+                # 复制主文件
                 shutil.copy(plugin_path, game_folder)
+                
+                # 如果是After版本，还需要复制签名文件
+                if game_version == "NEKOPARA After":
+                    sig_path = os.path.join(PLUGIN, GAME_INFO[game_version]["sig_path"])
+                    shutil.copy(sig_path, game_folder)
+                    
                 self.installed_status[game_version] = True
                 QMessageBox.information(
                     self, f"通知 {APP_NAME}", f"\n{game_version} 补丁已安装\n"
@@ -509,6 +531,7 @@ class MainWindow(QMainWindow):
             )
             return
 
+        # 处理1-4卷
         for i in range(1, 5):
             game_version = f"NEKOPARA Vol.{i}"
             if not self.installed_status[game_version]:
@@ -521,6 +544,19 @@ class MainWindow(QMainWindow):
                 self.download_queue.append(
                     (url, game_folder, game_version, _7z_path, plugin_path)
                 )
+        
+        # 处理After
+        game_version = "NEKOPARA After"
+        if not self.installed_status[game_version]:
+            url = config["after"]
+            game_folder = os.path.join(self.selected_folder, "NEKOPARA After")
+            _7z_path = os.path.join(PLUGIN, "after.7z")
+            plugin_path = os.path.join(
+                PLUGIN, GAME_INFO[game_version]["plugin_path"]
+            )
+            self.download_queue.append(
+                (url, game_folder, game_version, _7z_path, plugin_path)
+            )
 
         self.next_download_task()