In ancient novels, the female protagonist saved the male protagonist by being a nanny. This kind of plot was more common and usually involved the rigid impression and sexism of female characters in ancient society. In modern novels, the heroine is usually a brave, intelligent, and responsible female image. She is unyielding in the difficult situation, using her wisdom and courage to overcome all kinds of difficulties and finally succeed. In this kind of novel, the male protagonist was usually strong, brave, and responsible. They would gradually grow up with the help of the female protagonist and experience many hardships with the female protagonist to finally establish a sincere love story. This kind of plot could not only satisfy the reader's need for romantic love, but also enhance the reader's understanding and thinking about ancient society.