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?
Kutsuwa Daijirou. Until last month, he 
was a teacher at Morisato Middle School,
Daijiro Kutsuwa.
Daijirou Kutsuwa. Até o mês passado
 era da Escola Ginasial Morisato,