Jiang Yu accidentally traveled to the novel "Guimen" because of the rewritten ending, and became Jiang Yun who had the worst fate. Jiang Yun was sent to the Shen Mansion for foster care by his father's concubine just after time travel. In order to change his destiny, Jiang Yun practiced swordplay in the Shen Mansion for five years. Five years later, Jiang Yun returned to the mansion and used various methods to drive his concubine and Jiang Rou out of the mansion. During the subsequent power struggle, she met Cheng Huai and married him. She used Cheng Huai to become the princess and changed her destiny. Only in the end did Cheng Huai realize that he was just a pawn of Jiang Yun.
Intention: As long as there is a goal, the supporting character can also become the heroine of her own life.