My Crush Got Possessed by the Duke

So-a’s feelings for her childhood friend Yuseong become more complicated when he is suddenly possessed by Duke Hereis De Licariel. The duke’s arrival leaves So-a and Yuseong’s body caught between two very different worlds. So-a and Hereis must find a way to send the duke back home, though his manner seems straight out of a fantasy novel. Meanwhile, So-a has to keep up with her studies and sports while dealing with a swordmaster duke—and trying to get her childhood friend back.