Teppei just transferred into Kaimei Academy, and he's pressured to join the Sket-dan by his classmate, Bossun. Then, one day, Teppei is attacked by a mysterious masked paint chucker, "Paint Mask"!
Sneakin' around behind the scenes like that!
¡Metiéndose en lo que no les importa!
¡Metiéndose en lo que no les importa!
Eles ficam perseguindo
 pelos cantos assim!