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?
When I get into high school, I'm 
gonna change it. I'm gonna change it.
Quando eu entrasse no colegial, 
eu mudaria. Eu vou mudá-la.