Kazuto Yoshikawa, a student at Kikuura Gakuen, is secretly jealous of his friend Rintarou Okitsu, who has a girlfriend and leads a fulfilling life. One day after school, when Kazuto returns to the classroom to pick up something he forgot before a test, he encounters his crush, Ayase Suzuka, masturbating. Suzukaze takes a resolute attitude and proposes a handjob to shut up Kazuto, who is suddenly upset. The sudden request makes Kazuto even more confused. However, due to Suzukaze's mysterious pressure and temporary lewdness, Kazuto decides to go along with the proposal. Thus begins a slightly naughty secret relationship with Suzukaze. However, Kazuto wonders if this kind of relationship is okay for him. He said that he would never have this kind of physical relationship with a girl he wanted to properly be his girlfriend. Kazuto, who seeks pure love, makes a certain decision after the sports festival. "I'm going to confess when this sports festival is over...!" Will Kazuto's thoughts be conveyed? And Suzukaze's reaction to the confession is...!?