Invited by a friend, Yuzuru starts going to a private gym. He meets a trainer there, Yuki, and gradually becomes interested in her... One day, he sees her entering a suspicious building. Yuzuru secretly follows her and what he sees there is... Yuki, a stripper who captivates the audience with her seductive dance. Yuzuru is shocked and speechless, but is Kokoro by her lewd and graceful lewd behavior. Then, when he meets her again at the gym, she secretly calls out to him, saying, "If you come again, I'll give you a service."