Douma in his life as a person, was considered a kind of deity because of his rainbow-colored eyes. However, the boy was never able to believe in the existence of an afterlife, using his fame as a kind of facade just for having unusual beauty.
Douma has the ability to easily absorb large masses of meat without having to eat them. Thus, Douma had extremely fast regeneration, since any damage caused to his body was nothing more than a memory.