Katou Kiri has become Tsubaki's loyal retainer, but will the young ninja learn to work together with his other Student Council colleagues in order to build a better academy? Then, the Sket-dan teams up with the Student Council to cure Usami of her hatred for all men... and it involves more than one kind of cross-dressing...
It's not your fault, Kiri. These 
incorrigible fools and their horseplay are to blame.
No es tu culpa.
Não é sua culpa, Kiri. É desses idiotas 
sem jeito que só fazem confusão.