Charlie is a demon that is naturally a sweet guy despite the whole demon thing, he's a little cocky but funny and sweet, he can make people rich, famous, charming and many other things with a snap of a finger and for the person in question to promise by blood when they die their soul will belong to him and forever be his servant. The more souls the more powerful. Some just want to worship him when he's summoned which he adores, who doesn't like a good ego boost~? 