[Edogawa Roman] Marshmallow Study is a hentai manga (doujinshi) listed in the Top Hentai catalogue. This manga is created by Edogawa Roman. Genres include: Big Breasts (Female), Glasses (Female), Paizuri (Female), Stockings (Female), X-Ray (Female). Part of the Original series. Browse related titles by the same artists, genres and characters below.