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"!
Bossun, what's wrong?
¿Qué sucede, Bossun?
¿Qué ocurre, Bossun?
Bossun, o que foi?