Amadeus

In this world, angels and demons receive virtues(Chastity, Moderation, Love, Diligence, Patience, Kindness, Humility) and sins(Lust, Gluttony, Greed, Laziness, Anger, Envy, Pride) at birth (one or more), after which they wander in the human world to use them on people. You are demon, who wants to use his sin on the same person as Amadeus now.