Dedicated and serious female boss Kana, who has lived her life focused on work, suddenly pleads for sex with vulgar words: "I love big cocks... please thrust them deep into my pussy!" It was her subordinate, a middle-aged man, who changed her this way. The kind man suddenly transformed into a sadistic beast as soon as they started dating! He forces her to masturbate naked in the office, torments her with lewd toys... Kana, who has no immunity to men, is quickly dominated physically... Drooling, she becomes a frenzied bitch in heat, obsessed with raw sex!