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?
But Kutsuwa-sensei just started here...
Pero Kutsuwa-sensei acaba 
de llegar a esta escuela.
Mas o professor Kutsuwa 
acabou de começar aqui...