diff --git a/main.py b/main.py
index 242f725..9c98cd7 100644
--- a/main.py
+++ b/main.py
@@ -25,6 +25,7 @@ class Main:
 
         live_chat = pytchat.create (video_id = YOUTUBE_ID)
 
+            system_font = pygame.font.SysFont ('notosanscjkjp', 24)
         user_font = pygame.font.SysFont ('notosanscjkjp', 32,
                                          italic = True)
         nizika_font = pygame.font.SysFont ('07nikumarufont', 50)
@@ -41,11 +42,12 @@ class Main:
                     answer: str = Talk.main (message)
 
                     screen.blit (balloon, (0, 0))
-                    screen.blit (user_font.render ('> ' + message, True,
-                                                   (0, 0, 0)),
-                                 (120, 70))
-                    screen.blit (nizika_font.render (
-                        answer, True, (192, 0, 0)), (100, 150))
+                    screen.blit (
+                            user_font.render ('> ' + message, True, (0, 0, 0)),
+                            (120, 70))
+                    screen.blit (
+                            nizika_font.render (answer, True, (192, 0, 0)),
+                            (100, 150))
 
                     pygame.display.update ()
 
@@ -62,6 +64,12 @@ class Main:
 
                     time.sleep (10)
 
+            screen.bilt (
+                    system_font.render (
+                        f'live_chat.is_alive () == {live_chat.is_alive ()}',
+                        True, (0, 0, 0)),
+                    (0, 0))
+
             pygame.display.update ()
 
             for event in pygame.event.get ():