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"!
And w-what about it?
¿Q-Qué con eso?
¿Y-Y qué importa?
E-E o que tem de mais?