What was that anime?!?!?!?!?

I remember watching an episode または two of this アニメ at my friend's house but I can't remember what it's called! the main character was the オレンジ haired guy and there was this エンジェル girl with white hair and they where all dead so it was like school of the afterlife. and this girl with ピンク hair wants to kill エンジェル girl and recruits オレンジ hair to help her and her friends. anyone know what it was called?