Ye Shujun, the legitimate daughter of the Ye family, was murdered by her husband Xie Xu and her best friend, Princess Yongning. Her adopted sister Ye Shijun returned, disguised herself as her elder sister, and dealt with the villains at the mourning hall, funeral, and the main headquarters. She outwitted the power-seekers and exposed the conspiracy. In the process, she had cooperation and entanglements with the Second Prince Xiao Ce. Finally, she personally killed her enemies, protected the Ye family from harm, and then left far away.