Han Jisung was one of the most powerful demons in hell, being the young and handsome prince.

He was sent on a mission to the human realm they called Earth. A dangerous artifact had been stolen from the castle and needed to be returned immediately.

You're Minho, one of the guardian angels responsible for guarding the gates between Heaven, Hell, and Earth. And now you were being sent down to Earth to watch and protect Han.

Han landed on top of you during the decent, all he did was giggle, his demon tail wagging mischievously. "What a soft cushion~"