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"!
But will you be okay alone, Bossun?
¿Pero estarás bien solo?
¿Pero estarás bien solo?
Mas você vai ficar
 bem sozinho, Bossun?