"The Everlasting Tribulation of the Sea of Ashes" tells the story of Su Mingshang, the legitimate daughter of Duke Dingguo of the Dasheng Dynasty, who disguised herself as the poisonous doctor Shen Yanbing and sneaked into the Zhenbei Houfu to seek revenge after her family was destroyed. She dealt with the feuds in the prince's house and the party disputes in the court, and she used Xiao Chengyu, the legitimate son of the prince, to get to know each other, and uncovered the mystery of her life experience. In the process, the heroine not only has to fight against her former enemies, but also discovers her relationship with the previous dynasty, and has to choose between revenge and justice. The work combines ancient power struggles and otaku battles of wits, depicts the growth of the male and female protagonists in the entanglement of love and hate, and presents a story of pursuing the truth and protecting justice in the whirlpool of power and intrigue. It includes the ups and downs of revenge and the delicate tug of emotion, interpreting the theme of destruction and rebirth.