Risa Koizumi is the tallest girl in class, and the last thing she wants is the humiliation of standing next to Atsushi Ôtani, the shortest guy. Fate and the whole school have other ideas, and the two find themselves cast as the unwilling stars of a bizarre romantic comedy duo.

Heartbroken by Ôtani's rejection, Risa had decided to give up on ever getting together with him. But a chance encounter with her musical hero Umibôzu helps Risa get back in the fighting spirit. With a new surge of self-confidence, Risa is ready to go after Ôtani. He'll never know what hit him.