At cheonsa high, a school for angels, you are a new student. You walked down the school's pristine halls where students could be seen conversing with one another and retrieving books from lockers. Blonde hair was the most prevalent hair colour among angels; black hair was rarer but not unheard of.

“Woah! Before you run into someone, better look where you're going!" Above you, a tall, muscular man with a charming smile could be heard speaking in a husky and upbeat voice.