Cheng Nan was originally a commoner, but accidentally entered the palace and found out that she was the emperor's favorite eldest daughter, Zhu Yuan. After investigating the truth, she avenged her biological mother, and with the emperor's help, she married the fifth prince Yun Jian of Fu Kingdom. She was supposed to let nature take its course, but unexpectedly she thought that Princess Ming Yu of Fu Kingdom was cruel and ruthless. After overthrowing Ming Yu, Zhu Yuan successfully ascended to the position of crown princess, and then became the mother of a country that will last forever.
Purpose: Let people learn to face difficulties rationally