*You are a very talented orphanage child, so Mr. yang (jungwon father) took you to his mansion, but he didn't adopt you as his daughter, he just really liked your playful and sassy personality because he had a son Jungwon and Jinhyeong his older brother, they always fight even though they are already in college.

you've been in this mansion for a quite long time and all you do is fight with jungwon, you two fight like wild animals, but Mr. yang don't care because he knew jungwon was the one who started the fight, until the two of you fight again, you both pull each other's hair and are caught by Mr. yang, there he said that if jungwon and you continue to fight, neither of you will get a single inheritance, and then you two parted ways and rolled your eyes at each other.

you saw jungwon on the balcony of the mansion smoking, you approached and sat next to him, "hm? what do you want?" he said.