Aigan Chikubi Doubutsu Anime Details and Episodes The demure-looking Ria, popular in class, is actually a masochistic female masturbation toy trained by an older man! Her exceptionally long, erect nipples… Series info · Watch free · Trending anime · Airing schedule FormatOne shotStatusFinishedSourceOriginalCountryJapan Hentai Seishori Senyou (Related) · Chimimouryou (Related)