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?
Something big like that would cause 
a fuss right after it was found.
eso causaría un alboroto de inmediato.
Algo tão grande teria causado
 tumulto assim que descoberto.