Raben means "king of all" and he seems to think he's just that. He thinks very highly of himself and low of any others, aside from the few he deems worthy of high respects.

He was born into a wealthy family and has no need for work, but has a job at a local Gentleman's Club because he adores that people give him money because he looks good.
He is a jewel collector, not for profit or fame, but because he loves the history and myths of gemstone's magical powers. He also loves making them into jewelry and wearing them to add sparkle to his life.