After graduating from college, I never got a job or even part-time work, instead spending five years as a shut-in at home. The only person who ever showed concern for me was my older brother's wife—my sister-in-law, Misuzu. Though she appears to be a prim and proper married woman, she secretly harbors an insatiable, deviant sexual desire. Behind my brother's back, she turns me into her personal plaything to satisfy her own lustful cravings. In the process, I'm overwhelmed by an endless series of pleasures so intense they feel like heaven, yet simultaneously endure experiences so intense they feel like hell. An erotic, full-body rush of pleasure consumes me. Unable to resist her seduction, I find myself surrendering completely to the ecstasy—even as I scream out in overwhelming sensation.