diff --git a/routers/activities_v2_router.py b/routers/activities_v2_router.py
index d48fe0e..a8dc929 100644
--- a/routers/activities_v2_router.py
+++ b/routers/activities_v2_router.py
@@ -48,7 +48,7 @@ async def create_activity_v2(
     result = await db.zvms_new.get_collection("activities").insert_one(activity)
 
     log.with_text(
-        f'User {await get_user_name(user['id'])} (ID: {user['id']}) created activity {activity["name"]} at {datetime.now().isoformat()}. It\'s {activity["status"]} and the creator is {activity["creator"]}. The ID of the activity is {result.inserted_id}.'
+        f'User {await get_user_name(user['id'])} (ID: {user['id']}) created activity {activity["name"]} at {datetime.now().isoformat()} (ID: {result.inserted_id}).'
     )
     await log.insert_log()
 
@@ -345,7 +345,7 @@ async def add_activity_member_v2(
     result = await db.zvms_new.get_collection("activity_members").insert_one(member)
     
     log.with_text(
-        f'User {await get_user_name(user["id"])} added member {await get_user_name(target_user.id)} to activity {target_activity.name} at {datetime.now().isoformat()}. The ID of the activity is {activity_id}.'
+        f'User {await get_user_name(user["id"])} added member {target_user.name} to activity {target_activity.name} at {datetime.now().isoformat()}. The ID of the activity is {activity_id}.'
     )
     await log.insert_log()
 
diff --git a/routers/users_router.py b/routers/users_router.py
index 4a73f6b..4d124bd 100755
--- a/routers/users_router.py
+++ b/routers/users_router.py
@@ -297,8 +297,6 @@ async def update_user(
 
     pasts = []
 
-    if user_info["name"] != user_struct.name:
-        pasts.append(user_info["name"])
     if user_info["id"] != user_struct.id:
         pasts.append(user_info["id"])
 
diff --git a/util/statement.py b/util/statement.py
index cb79751..4227a96 100644
--- a/util/statement.py
+++ b/util/statement.py
@@ -35,7 +35,7 @@
 TRANSLATIONS = {
     "zh": {
         "volunteer_statement": "义工明细",
-        "signature": "镇海中学义工管理平台 | 学生会实践部",
+        "signature": "镇海中学义工管理平台 | 学生会",
         "name": "姓名",
         "student_id": "学号",
         "class": "班级",
@@ -64,7 +64,7 @@
         "recording_mode": "记入模式",
         "duration": "计入时长",
         "person_in_charge": "负责人",
-        "sgn": "镇海中学团委 学生会实践部",
+        "sgn": "镇海中学团委 学生会",
         "stmt": "本明细由平台数据导出自动生成，经团委审核、盖章后生效。未经审核的明细不具备证明效力。",
         "spreadsheet": {
             "_id": "数据库 ID",
@@ -83,7 +83,7 @@
     },
     "en": {
         "volunteer_statement": "Volunteer Details",
-        "signature": "Zhenhai High School Volunteer Management System | Department of Practice, Student Union",
+        "signature": "Zhenhai High School Volunteer Management System | Student Union",
         "name": "Name",
         "student_id": "Student ID",
         "class": "Class",
@@ -111,7 +111,7 @@
         "recording_mode": "Recording Mode",
         "duration": "Duration",
         "person_in_charge": "Person in Charge",
-        "sgn": "Zhenhai High School Youth League Committee & Student Union Department of Practice",
+        "sgn": "Zhenhai High School Youth League Committee & Student Union",
         "stmt": "This statement is automatically generated from platform data and is valid after review and stamping by the Youth League Committee. Unreviewed statements do not have proof of validity.",
         "spreadsheet": {
             "_id": "Database ID",
@@ -128,53 +128,6 @@
             "filename": "Volunteer Details Sheet",
         },
     },
-    "jp": {
-        "volunteer_statement": "ボランティア明細",
-        "signature": "鎮海中学校ボランティア管理システム | 学生会実践部",
-        "name": "名前",
-        "student_id": "学生ID",
-        "class": "クラス",
-        "database_id": "データベースID",
-        "export_time": "エクスポート時間",
-        "export_period": "エクスポート期間",
-        "volunteer_statistics": "ボランティア時間統計",
-        "volunteer_statistics_this_year": "今年のボランティア時間統計",
-        "category": "統計項目",
-        "total_hours": "総時間",
-        "on_campus": "校内",
-        "off_campus": "校外",
-        "social_practice": "社会実践",
-        "effective_hours": "有効時間",
-        "volunteer_hours": "ボランティア時間",
-        "required_hours": "必要最低時間",
-        "reached_target": "目標達成",
-        "not_reached_target": "目標未達成",
-        "target_status": "目標状態",
-        "volunteer_hours_this_year": "今年のボランティア時間",
-        "hours": "時間",
-        "volunteer_service_records": "ボランティアサービス記録詳細",
-        "activity_name": "活動名",
-        "date": "日付",
-        "recording_mode": "記録モード",
-        "duration": "サービス時間",
-        "person_in_charge": "担当者",
-        "sgn": "鎮海中学校青年団委員会 学生会実践部",
-        "stmt": "この明細はプラットフォームデータから自動生成され、青年団委員会の審査とスタンプ後に有効になります。未審査の明細は証明力を持ちません。",
-        "spreadsheet": {
-            "_id": "データベースID",
-            "name": "名前",
-            "id": "学生ID",
-            "group": "クラス",
-            "on-campus": "校内",
-            "off-campus": "校外",
-            "social-practice": "社会実践",
-            "ay-on-campus": "今年の校内",
-            "ay-off-campus": "今年の校外",
-            "ay-social-practice": "今年の社会実践",
-            "description": "明細",
-            "filename": "ボランティア明細表",
-        },
-    },
 }
 
 
diff --git a/util/validation.py b/util/validation.py
index cca35d6..283064f 100644
--- a/util/validation.py
+++ b/util/validation.py
@@ -3,35 +3,12 @@
 
 
 def validate_activity_name(name: str):
-    """
-    Validate activity name.
-    1. Should be only appear in Chinese, Latin Characters, numbers, spaces, slashes, dashes, and dots.
-    2. ASCII letters should be wrapped with spaces if inserted between Chinese characters.
-    3. Should not be empty.
-    4. Should not have space before or after the string.
-    """
     if not name.strip():
         return False, "Should not be empty"
 
     if name[0] == " " or name[-1] == " ":
         return False, "Should not have space before or after the string"
 
-    # Should only contain Chinese, Latin Characters, numbers, spaces, slashes, and dots
-    if not re.match(r"^[-\u4e00-\u9fa5\u2013-\u2014a-zA-Z0-9 /-/.]+$", name):
-        return (
-            False,
-            "Should only appear in Chinese, Latin Characters, numbers, spaces, slashes, dashes (including en dash and em dash), and dots",
-        )
-
-    # ASCII letters should be wrapped with spaces if inserted between Chinese characters
-    if re.search(r"[\u4e00-\u9fa5][a-zA-Z0-9]", name) or re.search(
-        r"[a-zA-Z0-9][\u4e00-\u9fa5]", name
-    ):
-        return (
-            False,
-            "ASCII letters should be wrapped with spaces if inserted between Chinese characters",
-        )
-
     return True, ""