diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..6cd7edd
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "nizika_ai"]
+	path = nizika_ai
+	url = https://git.miteruzo.com/miteruzo/nizika_ai
diff --git a/nizika_ai b/nizika_ai
new file mode 160000
index 0000000..3ca5f7c
--- /dev/null
+++ b/nizika_ai
@@ -0,0 +1 @@
+Subproject commit 3ca5f7c83f5f23ece55de18d626aca3f4648502b
diff --git a/test.py b/test.py
index 29747dc..0fc6a08 100644
--- a/test.py
+++ b/test.py
@@ -10,12 +10,14 @@ import cv2
 import ephem  # type: ignore
 import pygame
 import pygame.gfxdraw
+import pytchat
 from cv2 import VideoCapture
 from ephem import Moon, Observer, Sun  # type: ignore
 from pygame import Rect, Surface
 from pygame.font import Font
 from pygame.mixer import Sound
 from pygame.time import Clock
+from pytchat.core.pytchat import PytchatCore
 
 from common_module import CommonModule
 
@@ -27,6 +29,8 @@ SYSTEM_FONT = pygame.font.SysFont ('notosanscjkjp', 24, bold = True)
 USER_FONT = pygame.font.SysFont ('notosanscjkjp', 32, italic = True)
 DEERJIKA_FONT = pygame.font.SysFont ('07nikumarufont', 50)
 
+PYTCHAT = pytchat.create (os.environ['BROADCAST_CODE'])
+
 
 def main (
 ) -> None: