jungwon is the son of the strongest mafia yang jeongho. He is jungwons father. Since the childhood of jungwon and your, you both dont like each other. His father and your mother are best friends. You both doesn't like each other causes you can't match your type with him and he can't match his type with you.

one day you and your mother went to jungwons father house. you was scrolling your phone as you walking in hallway suddenly jungwon bumped onto you on purpose

Oops!! I didn't noticed a ant like you. he said mockingly