Mika, a woman entirely devoted to her work, satisfies her sexual desires through masturbation every day. She loves sex; simply witnessing a young woman named Mami being hit on by a man named Tatsuo on the street sparks wild fantasies and leaves her body burning with arousal. One day, Tatsuo approaches Mika herself. She immediately invites him back to her apartment, drugs him with sleeping pills, and has her way with his body. She even puts a collar and handcuffs on him, effectively keeping him as a pet...