A shocking twist at the pinnacle of little boy drama! Ayaka, a strict, no-nonsense mother dedicated to her child's education, finds herself facing the most depraved brat in history. Once he gains leverage over her, Ayaka is completely trained to become an ejaculation toilet, forced to satisfy the boy's insatiable lust. Behind the facade of her son diligently studying, Ayaka is tormented with vibrators, made to swallow spit, and subjected to relentless servitude, gradually awakening her deep masochistic side. Eventually, even her beloved son becomes an object of her own uncontrollable desire.