Eunseo and Junwoo are childhood friends. Eunseo, a top actor, makes a deal with Junwoo, stating that if Junwoo helps him practice his script, then Junwoo can meet his favorite actor, Eden. The more romantic the scenes get, the more Junwoo is unable to shake off some strange feelings. And to make matters worse, Eunseo asks Junwoo to help him act out a sex scene. Will Junwoo be able to get through this heart fluttering rehearsal safely?