Ryosuke secretly admires his wife's mom friend, Maki. One day, after fighting with his wife, Ryosuke goes to a soapland to blow off steam. There, he encounters Maki working as a girl. After some inner conflict, he lets her relieve him. Ryosuke becomes addicted to the unprecedented pleasure. Maki, who has no intimacy with her husband, also gradually opens up to Ryosuke.
