So i used to watch this anime a long long time ago and i forgot the name. I even forgot what it is about. I just remember that it was rly good. There was some kind of demon people. Some good and some bad. The hero is a blonde kid with a crown on his head and when he gets it off he enters a rage stance or something. I remember two people helped him one of them had red hair i recall and used some sort of grim reaper weapons and the other used like magic techniques. That's all i remember.