The second release from Fitch's new label, Maniacs! Once again, director Takiguchi Silvia has completed a new, erotic work that is unmatched by anyone else! Waka, an intelligent female college student, is studying sexology (biological sex science) and is currently writing a research paper. The theme is "Beast Mating Science." Waka repeatedly has sex with males, and reverts to being a beast, experiencing beast mating science for herself. This is a condensed version of a lewd orgy, perverted climaxes, continuous swallowing, wild beast sex, and hardcore fucking that exposes instincts!