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?
Stop messin' around with me like 
that! I was pretty depressed.
¡No me trates de esa manera!
Pare de tirar sarro de mim! 
Eu fiquei bem deprimido.