男だと思っていた幼馴染がお姫様になって帰ってきた件 (Associated Names)

The most beautiful girl in the school moved into the room next door. The main character “Iida Sora” had a childhood friend “Ayato” whom he used to play with in his childhood. They were good friends, but after the move, they became separated. The memories of their childhood fade away, and Sora eventually forgets about…