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.

Ôtani wins tickets to the Umibôzu concert and asks Risa to go with him. Could this be the answer to her dreams--their first date?! But as fate would have it, Ôtani gets sick the day before the concert. Concerned (about her friend and the date), Risa visits his sick bed and gets her first kiss! Or does she? Was it an accident? Does Ôtani even remember it?