High schoolers Rin and Kyo are childhood friends from kindergarten. They're so close that there's virtually nothing they don't know about each other.

Rin, who had been pining for Takahashi-kun, his father's lover, for many years, finally gave up, wishing instead for his father and Takahashi's happiness. After his broken heart was comforted by Kyo, Rin is finally able to stand up again, but then suddenly, Kyo confesses to him…?!