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"!
You were here the whole time?!
¡¿Estuviste aquí todo el tiempo?!
¡¿Estuviste aquí todo el tiempo?!
Você estava aí
 o tempo todo?!