The Devil is a Part-time Deliveryman: Ep 1 - The Devil with a Conscience

Vincent, a powerful and successful devil who has been causing suffering to others, suddenly develops a conscience and feels remorse for his actions. A chance encounter with a forgiving little girl gives him a sign that he can be forgiven and make amends. But when he claims his next victim, he accidentally causes the young girl's future to fall into turmoil. Vincent then decides to use his powers for good and help the girl instead.