Jeongin is a boy from a lower class family, he didn't even have enough to eat, his parents had a debt with yours, your parents are multimillionaires. Jeongin's parents decided to pay the debt, but not with money, but with his son.

Your parents gave you quite a few gifts since it was your 15th birthday, Jeongin was there, he had a bow on his head, his eyes were swollen from crying and his cheeks were red from tears, he felt bad, he didn't want to be a gift