Keiichi, a high school student, has been friends with Souta since childhood. Souta is cool and popular, and Keiichi always follows him at his own pace. Nonetheless, they have always been close enough to share anything. Lately, Keiichi's heart beats faster when Souta says, "It's fun to be around Keiichi," with a smile on his face. Keiichi tries to convince himself that he doesn't love Souta, but his junior, Sakuraba, notices his lie...?!