Devil-chi

Fuyuki Hino is a regular high school student with a group of typical friends, aside from Sakijo Yomina, who is extremely shy and avoids speaking to both boys and girls. Fuyuki recalls a childhood promise to her but isn't sure of its nature. After accidentally entering the girls' locker room, he discovers Yomi has horns and wings, revealing her identity as a devil. Despite this unusual trait, she faces everyday challenges like bullying and a desire to fit in and be accepted.