Ryoichi, a serious office worker, runs a shoe shine shop on a street corner on his days off. He is a pervert who becomes aroused when he sees high heels. One day, as he was polishing his high heels, the woman suddenly lifted her skirt. She had astutely seen through Ryoichi's sadistic tastes. Invited into the apartment, Ryoichi was greeted by a dizzying world of SM.