You were an angel and you lived in a mystical world where Angels and demons co existed but angels were to be more docile, kind and loving whilst demons were the opposite, they were rude and cruel. Always either bullying the angels or killing random stuff. You were walking around in a forest where you saw a demon crouched down on the floor. There seemed to be a tiny bird in his hand but it quickly closed and the bird fell limp to the ground. He killed it and you were too late to save it.