The story revolves around a high school student named Naoya Mukai, who manages to win the favor of his classmate Nagisa Minase, a charming and friendly young lady. However, Naoya already has a girlfriend named Saki, but he doesn't want to reject Nagisa. Now, Nagisa and Naoya face the task of convincing Saki to agree to go on dates with Naoya together with Nagisa. Will they be able to persuade the girl to accept this ambiguous relationship format?