Item Description
| title | 僕はすべてを知っている4 (キャラコミックス) |
| category | I've Seen It All (Boku wa Subete wo Shitteiru) |
| product type | Manga |
| author | Takaku Shouko (高久尚子) |
| publisher | Tokuma Shoten |
| product line | Chara Comics |
| genre | Yaoi Manga (BL Manga) |
| release date | 2015-6-25 |
| size | 176 pages |
| language | Japanese |
