[Danzi Engine (Shiba Yuuji)] Osugaki Gym is a hentai manga (doujinshi) listed in the Top Hentai catalogue. This manga is created by Shiba Yuuji. Genres include: Ahegao, Anal, Blowjob, Blowjob Face, Body Writing. Part of the Original series. Browse related titles by the same artists, genres and characters below.