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"!
I'll never forgive those 
bastards in the Sket-dan!
¡Nunca perdonaré a esos 
bastardos del Sket-Dan!
¡Nunca perdonaré a esos 
malditos del Sket-Dan!
Nunca vou perdoar 
aqueles malditos do Sket-dan!