The younger brother of the heroine, the legitimate daughter of a miracle doctor, is called Feng Zirui. A time-travel novel written by Yang Liuliu, the author of "The Miracle Doctor's Daughter", this novel integrates elements such as time-travel, house fighting, palace fighting, strong women, fantasy, romance and other elements. It tells the story of Feng, a special medical officer of the Marine Corps in the 21st century. Yu Heng's soul traveled to the Dashun Dynasty in an unknown era. In the 21st century, Feng Yuheng, a master of both Chinese and Western medicine and a special medical officer in the Marine Corps, traveled through time and became the legitimate daughter of the Feng family of Dashun Dynasty. However, the father is not close, the grandmother is unloving, the mother is cowardly, the younger brother is young, and the sisters are more ruthless than the other. After time travel and rebirth, she must never be as useless as the original owner. Therefore, the younger brother of the heroine, the legitimate daughter of the miracle doctor, is named Feng Zirui.