Other names:
One Day, My Partner Was Possessed by the Duke One Day, the Duke Was Possessed by His Partner One Day, the Duke Was Possessed My Partner 幼なじみは今日から公爵様! 幼なじみは今日から公爵様! 어느날 짝남에게 공작님이 빙의했다
So-a knows that having a crush on a childhood friend can be complicated, but it’s even harder when he gets possessed by… the duke?! When So-a’s friend Yuseong is suddenly possessed by Duke Hereis De Licariel, they must figure out a way to get Hereis back home -- which is easier said than done when Hereis sounds like he came straight out of a fantasy novel! Can So-a get her childhood friend back while having to juggle academics, sports, and a duke who also happens to be a swordmaster?