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?
Acknowledge all of your sins 
here and beg forgiveness!
¡Admite todos tus crímenes y pide perdón!
Reconheça agora seus crimes
 e implore por perdão!