Cool Devices is a 1995 hentai anime created by Utatane Hiroyuki.
Cool Devices is an 11-episode hentai series from 1995 by Studio Green Bunny and creator Utatane Hiroyuki. The episodes are a collection of unrelated stories with similar themes and presentation. It is well-known for being particularly graphic, with a focus on BDSM content; and for having high production values for its time.
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