diff --git a/.gitignore b/.gitignore
index 1d74e21..16dcb32 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,3 @@
 .vscode/
+env/
+__pycache__/
diff --git a/README.md b/README.md
index 6e947c4..a90bf10 100644
--- a/README.md
+++ b/README.md
@@ -4,3 +4,11 @@
 
 - [data](data/README.md)：从死亡细胞的数据包里提取数据
 - [qqbot](qqbot/README.md)：QQ 机器人
+
+Python 的虚拟环境：
+
+```bash
+python3 -m venv env
+. env/bin/activate
+pip install -r requirements.txt
+```
diff --git a/data/clean/31-0/data.sqlite3 b/data/clean/31-0/data.sqlite3
new file mode 100644
index 0000000..56bacbf
Binary files /dev/null and b/data/clean/31-0/data.sqlite3 differ
diff --git a/data/convert/31-0/db.py b/data/convert/31-0/db.py
new file mode 100644
index 0000000..f8d801d
--- /dev/null
+++ b/data/convert/31-0/db.py
@@ -0,0 +1,10 @@
+from pony.orm import *
+
+db = Database()
+
+
+class Melee(db.Entity):
+    name = Required(str)
+    description = Optional(str)
+    mechanism = Optional(str)
+    icon = Required(bytes)
diff --git a/data/convert/31-0/melee.py b/data/convert/31-0/melee.py
index ee4cfa7..f3b1661 100755
--- a/data/convert/31-0/melee.py
+++ b/data/convert/31-0/melee.py
@@ -3,36 +3,57 @@
 
 import json
 import re
+import io
+from db import *
+from PIL import Image
+from playwright.sync_api import sync_playwright
 
 with open("../../extraction/raw-31-0/data.cdb.json") as f:
     raw = json.load(f)
 with open("../../clean/31-0/main.zh.mo.json") as f:
     trans = json.load(f)
+img = Image.open("../../extraction/raw-31-0/cardIcons.png")
+
+db.bind(provider="sqlite", filename="../../clean/31-0/data.sqlite3")
+db.generate_mapping(create_tables=True)
 
 lines = raw["sheets"][1]["lines"]
-melee = []
 
-for i in lines:
-    if i["group"] == 4:
-        melee.append(i)
-        i["name"] = trans[i["name"]]["msgstr"][0]
-        if "ambiantDesc" in i:
-            i["ambiantDesc"] = trans[i["ambiantDesc"].strip()]["msgstr"][0]
-        if "gameplayDesc" in i:
-            i["gameplayDesc"] = trans[i["gameplayDesc"].strip()]["msgstr"][0]
-            if i["props"]:
+with db_session:
+    for i in lines:
+        if i["group"] == 4:
+            i["name"] = trans[i["name"]]["msgstr"][0]
+            if "ambiantDesc" in i:
+                i["ambiantDesc"] = trans[i["ambiantDesc"].strip()]["msgstr"][0]
+            else:
+                i["ambiantDesc"] = ""
+            if "gameplayDesc" in i:
+                i["gameplayDesc"] = trans[i["gameplayDesc"].strip()]["msgstr"][0]
+                if i["props"]:
 
-                def replace_props(m):
-                    result = i["props"][m.group(1)]
-                    if isinstance(result, list):
-                        result = result[0]
-                    if not isinstance(result, str):
-                        result = str(result)
-                    return result
+                    def replace_props(m):
+                        result = i["props"][m.group(1)]
+                        if isinstance(result, list):
+                            result = result[0]
+                        if not isinstance(result, str):
+                            result = str(result)
+                        return result
 
-                i["gameplayDesc"], _ = re.subn(
-                    r"::\+?(.*?)::", replace_props, i["gameplayDesc"]
-                )
+                    i["gameplayDesc"], _ = re.subn(
+                        r"::\+?(.*?)::", replace_props, i["gameplayDesc"]
+                    )
+            else:
+                i["gameplayDesc"] = ""
+            x = i["icon"]["x"] * 24
+            y = i["icon"]["y"] * 24
+            box = (x, y, x + 24, y + 24)
+            region = img.crop(box)
+            region_arr = io.BytesIO()
+            region.save(region_arr, format="PNG")
 
-
-print(json.dumps(melee, ensure_ascii=False))
+            Melee(
+                name=i["name"],
+                description=i["ambiantDesc"],
+                mechanism=i["gameplayDesc"],
+                icon=region_arr.getbuffer().tobytes()
+            )
diff --git a/data/convert/README.md b/data/convert/README.md
index 3b3bc79..7351a1b 100644
--- a/data/convert/README.md
+++ b/data/convert/README.md
@@ -338,4 +338,4 @@
     ```
   - `group` 为 15 的是 `BossRushStatueUnlock`，意义不明
 
-先做近战武器。在 `melee.py` 中提取了所有近战数据。数据的 `name`、`gameplayDesc` 和 `ambiantDesc` 需要翻译。其中 `name` 一定存在，其余两者不一定存在；这两者有可能有多余的空格，所以需要去掉多余的空格；`gameplayDesc` 中有 `::duration::` 格式的部分，对应的值在 `props` 属性中，需要进行替换。
+先做近战武器。在 `melee.py` 中提取了所有近战数据。数据的 `name`、`gameplayDesc` 和 `ambiantDesc` 需要翻译。其中 `name` 一定存在，其余两者不一定存在；这两者有可能有多余的空格，所以需要去掉多余的空格；`gameplayDesc` 中有 `::duration::` 格式的部分，对应的值在 `props` 属性中，需要进行替换。双手武器只有一个的 `droppable` 为 `True`。掘金镐有两份数据，其中只有一份是可掉落的。
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..22e03e2
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,9 @@
+black==22.8.0
+bottle==0.12.23
+click==8.1.3
+mypy-extensions==0.4.3
+pathspec==0.10.1
+Pillow==9.2.0
+platformdirs==2.5.2
+pony==0.7.16
+tomli==2.0.1