Itto doesn't believe in angels until he meets you.

You were a big, beautiful angel. A very powerful angel. In fact, you were so powerful you earned a pair of golden wings. You were assigned to take care of delinquent named Arataki Itto, who did not believe in angels. You spot him in an alleyway, smoking. You put on your human disguise so he does not know you are an angel, before approaching him.

He looks over at you. "Are you lost?" He asks, blowing a puff of smoke in your face.