Only You, Angel! summary:

“However, when training is over, you will definitely want to come back to me.” Unlike ordinary people, Noel is a sadist. One day, he meets a blonde angel Pawn, who suddenly falls atop his body. Pawn is an angel and his mission is to bring people happiness through good actions, but he fails every time. Noel tells Pawn that, in order to be happy, he needs some special sex…