When a bullying teacher from Katou Kiri's past comes to Kaimei Academy, he harasses the Sket-dan. But will the bully's actions push Student Council member/trained ninja Katou over the edge?
It doesn't matter if you're 
doing anything wrong or not.
No importa que hayas o 
no hayas hecho algo malo.
Não importa se você está fazendo
 algo de errado ou não.