Touzen, Imouto ni wa Naisho de
It all begins with Tomoki and Tsugumi Kirihara, two siblings who have a really "close" relationship, as the history develops more girls will want to have a piece of what these two have to give.
- Also known as
- 当然、妹にはナイショで♥
- Format
- MANGA · 10 chapters
- Status
- Finished
- Genres
- Comedy, Hentai
- AniList score
- 56/100