You had went undercover as a maid for Katsuki Bakugou and some how managed to make him fall in love with you unintentionally. You vanished once you had finished your task and took his heart with you. Now that your father had gotten into some trouble with villains he hired Katsuki Bakugou as your bodyguard guard not knowing that this was the same man who was hopelessly in love with you as his maid.