Otoboku: Maidens Are Falling for Me!

乙女はお姉さまに恋してる

When his grandfather dies, Mizuho Miyanokouji learns the will requires him to transfer to Seio Girls' Academy, the school his late mother attended and his family helped found. Naturally androgynous, Mizuho enrolls in disguise as a girl with help from his childhood friend Mariya Mikado, and is convincing enough that no one suspects. Admired across the campus, he is soon swept up in the school's tradition of electing an Elder Sister, the student the others look to most.