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"!
What? He joined the basketball team?
¿Qué? ¿Se unió al equipo de baloncesto?
¿Qué? ¿Se unió al equipo de baloncesto?
O quê? Ele entrou 
no time de basquete?