diff --git a/src/arcaea_offline/constants/enums/__init__.py b/src/arcaea_offline/constants/enums/__init__.py
index 6685812..8033893 100644
--- a/src/arcaea_offline/constants/enums/__init__.py
+++ b/src/arcaea_offline/constants/enums/__init__.py
@@ -1,11 +1,15 @@
-from .clear_type import ArcaeaPlayResultClearType
-from .language import ArcaeaLanguage
-from .modifier import ArcaeaPlayResultModifier
-from .rating_class import ArcaeaRatingClass
+from .arcaea import (
+    ArcaeaLanguage,
+    ArcaeaPlayResultClearType,
+    ArcaeaPlayResultModifier,
+    ArcaeaRatingClass,
+    ArcaeaSongSide,
+)
 
 __all__ = [
+    "ArcaeaLanguage",
     "ArcaeaPlayResultClearType",
     "ArcaeaPlayResultModifier",
     "ArcaeaRatingClass",
-    "ArcaeaLanguage",
+    "ArcaeaSongSide",
 ]
diff --git a/src/arcaea_offline/constants/enums/arcaea.py b/src/arcaea_offline/constants/enums/arcaea.py
new file mode 100644
index 0000000..461b85d
--- /dev/null
+++ b/src/arcaea_offline/constants/enums/arcaea.py
@@ -0,0 +1,37 @@
+from enum import Enum, IntEnum
+
+
+class ArcaeaRatingClass(IntEnum):
+    PAST = 0
+    PRESENT = 1
+    FUTURE = 2
+    BEYOND = 3
+    ETERNAL = 4
+
+
+class ArcaeaSongSide(IntEnum):
+    LIGHT = 0
+    CONFLICT = 1
+    COLORLESS = 2
+
+
+class ArcaeaPlayResultModifier(IntEnum):
+    NORMAL = 0
+    EASY = 1
+    HARD = 2
+
+
+class ArcaeaPlayResultClearType(IntEnum):
+    TRACK_LOST = 0
+    NORMAL_CLEAR = 1
+    FULL_RECALL = 2
+    PURE_MEMORY = 3
+    HARD_CLEAR = 4
+    EASY_CLEAR = 5
+
+
+class ArcaeaLanguage(Enum):
+    JA = "ja"
+    KO = "ko"
+    ZH_HANT = "zh-Hant"
+    ZH_HANS = "zh-Hans"
diff --git a/src/arcaea_offline/constants/enums/clear_type.py b/src/arcaea_offline/constants/enums/clear_type.py
deleted file mode 100644
index be49994..0000000
--- a/src/arcaea_offline/constants/enums/clear_type.py
+++ /dev/null
@@ -1,10 +0,0 @@
-from enum import IntEnum
-
-
-class ArcaeaPlayResultClearType(IntEnum):
-    TRACK_LOST = 0
-    NORMAL_CLEAR = 1
-    FULL_RECALL = 2
-    PURE_MEMORY = 3
-    HARD_CLEAR = 4
-    EASY_CLEAR = 5
diff --git a/src/arcaea_offline/constants/enums/language.py b/src/arcaea_offline/constants/enums/language.py
deleted file mode 100644
index 463136f..0000000
--- a/src/arcaea_offline/constants/enums/language.py
+++ /dev/null
@@ -1,8 +0,0 @@
-from enum import Enum
-
-
-class ArcaeaLanguage(Enum):
-    JA = "ja"
-    KO = "ko"
-    ZH_HANT = "zh-Hant"
-    ZH_HANS = "zh-Hans"
diff --git a/src/arcaea_offline/constants/enums/modifier.py b/src/arcaea_offline/constants/enums/modifier.py
deleted file mode 100644
index 2512277..0000000
--- a/src/arcaea_offline/constants/enums/modifier.py
+++ /dev/null
@@ -1,7 +0,0 @@
-from enum import IntEnum
-
-
-class ArcaeaPlayResultModifier(IntEnum):
-    NORMAL = 0
-    EASY = 1
-    HARD = 2
diff --git a/src/arcaea_offline/constants/enums/rating_class.py b/src/arcaea_offline/constants/enums/rating_class.py
deleted file mode 100644
index bb3f5a0..0000000
--- a/src/arcaea_offline/constants/enums/rating_class.py
+++ /dev/null
@@ -1,9 +0,0 @@
-from enum import IntEnum
-
-
-class ArcaeaRatingClass(IntEnum):
-    PAST = 0
-    PRESENT = 1
-    FUTURE = 2
-    BEYOND = 3
-    ETERNAL = 4