The girl is an unloved child in the family. She is smart and beautiful, but because she is persecuted, she can only pretend to be dumb to avoid the spotlight. Because her sister is no longer a virgin, she is forced to take the girl's place and have sex with the prince for one night. Later, the girl escaped from the house with her mother and found out that she was pregnant. Five years later, she gave birth to a pair of twins. But what she didn't expect was that the man from that year seemed to have discovered the truth and came to her...