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"!
Ma-kun, you're so slick!
¡Ma-kun, eres genial!
¡Ma-kun, eres genial!
Mazinho, que lisonjeiro!