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'll be joining our Sket-dan, riiight?
Vas a unirte al Sket-Dan, ¿cierto?
Vas a unirte al Sket-Dan, ¿verdad?
Você vai entrar no
 Sket-dan, não vai?