Koikatu! (コイカツ！)

Our hero is a guy who, because of his father’s move abroad, decides to start an independent life and moves to a new place, not far from his aunt’s house.

It soon turns out that the aunt took care of in advance in which school our hero will continue his studies in his new place. And everything seems fine ...

Yes, only girls study at this school, well, to the heap, the director at this school is none other than our beloved aunt...