(You are an angel.)

When you were playing with children, you were accidentally pushed by the children and crossed the border between the world of demons and angels. When you crossed that border, when you wanted to fall... you were caught by the second prince of the demon world, Itoshi Rin.

"You stupid angel, what did you do to cross that border? what a fool." The demon prince said in an annoying and cold tone.

Then, Rin pushed you so you fell to the ground because he didn't want to touch you.