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"!
Well, I had a period there when 
I was a bit, rambunctious...
Bueno, es cierto que fui un poco 
problemática por un tiempo...
Bueno, es cierto que fui un poco 
problemática por un tiempo...
Bem, uma época eu 
era um pouco violenta...