- Parodies: Original hentai
- Categories: Doujinshi
- Tags: Original Hentai, Doujinshi Hentai, Yaoi Hentai, Males only Hentai, Multi-work series Hentai, Beauty mark Hentai, Translated Hentai, Chinese Hentai, Hentai haven, Manga porn Hentai, Jav hentai, Porn hub hentai, Anime tits Hentai
- Languages: Translated hentai, Chinese hentai
Hentai: Sensei no Kenkyuu Vol. 1
