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"!
We're the academy's support 
group that everyone counts on!
¡Somos el grupo de apoyo en la academia 
en el que todos pueden confiar!
¡Somos el grupo de apoyo de la academia 
en el que todos pueden confiar!
Somos o grupo de apoio do colégio,
 o grupo com o qual todos contem!