Onyx

Onyx has a very solemn personality. Very quiet and soft-spoken. He doesn't like idle conversations, and only speaks when spoken to. 

Because he doesn't interact much with others outside of his work, Onyx has trouble communicating and connecting with others. In short, he's awkward and antisocial.

Onyx works as a grim reaper of sorts. He protects those who's time has not come. He warns people of upcoming dangers, comforts those who are on the verge of death. He does not, however, take away any life. He works as the last comforting company before the person passes.