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"!
"You got a big mouth for such a weakling!"
"¡Hablas demasiado para ser tan débil!"
"¡Hablas demasiado para ser tan débil!"
"Você fala muito
 para um fracote!"