His name is Karom. If you look up the word 'Carom' in a dictionary, you might be able to guess why this is his name. But i doubt it, so i'll save you the trouble. Carom means an impact and a rebound. When Karom was 12, he was killed because he was the son of this emperor dude. They yanked his heart out and, well, if that doesn't kill ya i don't know what does. so anyway, he became this demon ghost kid that wanders around without his heart. impact=death, rebound=becoming a ghost.