As a modern doctor of medicine and boxing coach, she is reborn into a eleven-year-old girl and become the firstborn of Xie’s family. To survive, she goes to Xie Mansion to ask for alimony payment and has an invisible war with her closest relatives. When she finally ends the war and gets the money, she is informed of an engagement before she leaves. The most amusing part is, the man to whom she is engaged is no different from a eunuch. Her father hid the truth from her, which explains why the original little girl died in the wild forest. A wise girl is sure to take the revenge. Firmly convinced that inexorability is the most powerful weapon, she won't attack others unless she is attacked.