diff --git a/docs/index.md b/docs/index.md
new file mode 100644
index 0000000..42cc59c
--- /dev/null
+++ b/docs/index.md
@@ -0,0 +1,21 @@
+# 🎲 Kemoverse Gacha Game Documentation
+
+Welcome to the developer documentation for **Kemoverse**, a gacha trading card game in the Fediverse!
+Features collectible cards, rarity-based pulls, and integration with Misskey.
+Name comes from Kemonomimi and Fediverse.
+---
+
+## 📁 Table of Contents
+
+- [Installation](./install.md)
+- [Game Design](./design.md)
+- [Bot Architecture](./bot.md)
+- [Database Structure](./database.md)
+- [Card System](./cards.md)
+- [Web UI](./web.md)
+- [Theming and Assets](./theme.md)
+- [Contributing](./contributing.md)
+- [FAQ](./faq.md)
+
+---
+