I found a novel I had read before and forgot that a woman got drunk in a bar and had sex with a man. This woman is a beauty queen. She has an opponent at school. What's her name?

In order to chase the man, the woman pretended to be a little white flower. Later, she was designed to be saved by a hero. In fact, this woman is a little sister. Later, when the man was helping others with their lessons, the woman was dancing outside and they were together in the back. But after a long time, the woman couldn't put it on. She once sneaked into a bar to dance and was seen by that man. This man is very angry. Later, the woman deliberately said that the man was poor and could not give it. Later, the woman gave the man a sum of money, saying that he had invested it before. In fact, the woman stole it from her father and was beaten by her father. In fact, the woman did this just to force the man, because both men and women have family problems, but the man's future ideal is to be a piano teacher. Women feel that if he doesn't force men, they will have no future. Later, the man went abroad. At first, the man came back from abroad and offered to marry the woman. In fact, it was this man who found out that her father was the murderer of his mother and planned to marry her and get her shares. Later, the man knew what she had done for him. They had a child before, but because the man was very sad after going abroad, he drank and took medicine every day, and the child was gone. Later, the man learned that her father didn't give her shares and didn't want to marry her, but the woman knew everything and the man was using it.