She just drinks something she shouldn't and has to go through puberty again because she's smaller. At the same time, she was thrown into his house by a sister without conscience. Although he is his fiancé, can he accept her as she is now? And a love rival appears——
His fiancée always disappeared. When she finally came home and was told that she would be the nanny of the little girl, his fiancée went out again. Could it be that she didn't know someone was waiting for her?