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?
Don't blame me! It was your 
own fault for being weak!
¡No le eches la culpa a otro!
Não jogue a culpa em mim. 
A culpa é sua por ser fraco!