> For the complete documentation index, see [llms.txt](https://kekkai-official.gitbook.io/kekkai-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kekkai-official.gitbook.io/kekkai-handbook/overview-quan-ti-xiang.md).

# Overview 全体像

- [KEKKAIとは？](https://kekkai-official.gitbook.io/kekkai-handbook/overview-quan-ti-xiang/kekkaitoha.md)
- [背景](https://kekkai-official.gitbook.io/kekkai-handbook/overview-quan-ti-xiang/bei-jing.md): KEKKAIを始めたきっかけ
- [どうやって守る？](https://kekkai-official.gitbook.io/kekkai-handbook/overview-quan-ti-xiang/douyatteru.md): KEKKAIの機能を紹介