Ms. Kasumi is caught in a compromising situation by a sinister janitor who exploits her weakness. He forces her into a sexual relationship and makes her climax against her will. His demands escalate as he begins to train her within the school grounds. She undergoes a wet, depraved training regimen involving gagging deep throat, piss drinking and swallowing, bareback creampie, restrained orgasm induction, and forced ejaculation. The once-serious Ms. Kasumi awakens to her true masochistic nature, abandoning her pride as a teacher, drooling and dripping with arousal in the sacred halls of the school, falling into a life as a depraved cum-dumpster begging for semen.