Shen Zhiyun, the crown prince's legitimate daughter and daughter-in-law, was coldly treated and humiliated by the prince Xiao Jingyan on her wedding night. The prince made it clear that he had someone he wanted (the concubine of the Sui Dynasty). Shen Zhiyun remained patient in the palace but secretly accumulated strength. When her family was framed by the prince and the Sui Prime Minister's party due to the "military ration case" and faced catastrophe, she pretended to be seriously ill and "dead" to set up a shocking death. In the mourning hall, her empty coffin revealed ironclad evidence that the prince had "collaborated with the enemy, treason, and framed loyalty." As a result, the prince was deposed, and she used this opportunity to escape.
Purpose: Palace intrigue