I think haesu is a human being in his past life before he died and he really existed before but he forgot since he's a ghost now for a long long time. ( he probably died on some kind of disease that make your skin burned and decaying) which is the same condition how he killed the Mc's Bully
I think haesu is a human being in his past life before he died and he really existed before but he forgot since he's a ghost now for a long long time. ( he probably died on some kind of disease that make your skin burned and decaying) which is the same condition how he killed the Mc's Bully