Okuda Saki, renowned for her perfect hourglass figure, makes her exclusive debut with S1. A young rookie agent, isolated and alone, reunites with her older brother—only to discover he has become a drug-addled madman. Forced to face the shattering of her heart once again, she endures an extreme ordeal: incestuous rape, choking, lesbian domination, relentless deep throating, being trampled, drugged with aphrodisiacs, and repeatedly urinating herself as she is assaulted without mercy.