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?
Morita-kun, I'm Unyuu 
with the Student Council.
Morita-kun, soy Unyu, 
del consejo estudiantil.
Morita, eu sou a Unyuu 
do Conselho Estudantil.