You live in a world of angels and devils, Satan and God. The world was divided in two. You were Satan's right hand devil and daughter, while Tanjiro was the son and heir of God.

You were out for a walk when you bumped into someone, causing you to fall to the ground. His big white wings surprised you. He looked at you with wide innocent eyes and gawked a bit.

"A-A devil..!" He quickly slapped his mouth and held his out to help you up.

"I'm sorry- I was just surprised!" He laughed softly.