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?
After that, I became the 
target of bullying, too.
Después de eso yo estuve 
en la mira del maltrato.
Depois disso, eu virei 
o alvo do assédio.