Ihika

Rin's mortal lover after she loses her memories in episode five. He proposes to her twice in the episode but is killed by Laura soon after Rin accepts his second proposal. In episode six he is revived (apparently by Eipos) as an angel and chained next to Rin to torment her. Rin, seeing him in a berserk frenzy and about to break free, is then forced to kill him in self-defense, realizing his identity only as he turns into ashes. From Wikipedia.