Saki Hatsumi, a first-year student at a prestigious women's university, is a sensitive and intelligent E-cup beauty with a kind heart that makes it impossible for her to say no. Exploited by heartless adults, she is subjected to a series of degrading acts. Forced into lewd practices including urine collection, drinking piss, creampie breeding where semen is poured into her gaping anus, and humiliating pissing sessions while crawling on all fours like a dog, she is pushed further into degradation. Ultimately, she endures relentless creampie sex, becoming nothing more than a piss-soaked, semen-filled plaything. Her pure and gentle body is invaded by impure desires, plunging her into a hell of continuous abuse and the terror of unwanted pregnancy.