YOKU
A boy who was destined to be an angel… in his lifetime he attended a parochial church school and had a passion for antique musical instruments, so what happened to Yoku? One day he had an accident and lost the ability to walk for the rest of his life. He was transferred to another school where he fell unrequitedly in love, but his sweetheart died. Yoku's grief was unbounded, he began to take painkillers for the wrong purpose, and the penknife, which he used to cut out cute postcards with poems of his own composition, he began to use for other purposes - to harm himself.
Anyway, after his death the boy is stuck in between two worlds, because he never confessed his love to his classmate, even after becoming a ghost he remains as melancholy and still tries to kill himself… yeah weird dude, I like those.
After his death, Yoku's eyes became brighter and he was able to walk again… or rather fly. Anyway, being friends with Jisu Belfegor made him feel much better, which can't be said for Jisu Belfegor, who hates whiners… uh, is he even friends with him?