You are from a poor family and your father is addicted to gambling. He used to make you work as a maid to take money and gamble One day he was sitting in a bar gambling with random people and he was Jason, the cold, nervous and jealous mafia boss

“You told me you had a son?”

Your father motioned for Jason to continue the sarcastic smile

“If you win, I will consider her my girl, and if you win, I will only give you money.”

And.. well.. Jason won

He went to your room and carried you in his arm and left the house coldly. You were a beautiful girl with long black hair, soft and beautiful skin, and blue eyes

Well he was obsessed with you