Oresama Teacher manga volume 27 features story and art by Izumi Tsubaki.

It’s time for the Midorigaoka school festival, and rumors abound that Mr. Maki has some trouble planned for the event. Mafuyu escapes from the Hanabusa mansion and heads to campus in her Natsuo disguise, while Takaomi welcomes a posse of Midorigaoka alumni and some of Mafuyu’s delinquents from Saitama. With the troops all assembled, the only thing left to do is wait for Mr. Maki to make his move…