After being reborn with my scumbag ex-husband, I became his sister-in-law.

[Double Rebirth of Scumbag Male and Female Leads + Sister Marries Brother] In her past life, Song Xizhi married her weak and incompetent younger brother, while her stepsister, Song Ruo'an, married her great general brother. However, General He Jingyan was wounded in battle and became a living dead, his life hanging by a thread; while her husband, the seemingly useless He Yunce, rose to prominence under her tireless efforts, becoming a pillar of the Marquis's household and reaching the highest ranks of officialdom. Yet, her cowardly husband secretly had an affair with her restless stepsister, leaving her to endure thirty years of widowhood, dying with resentment. On her wedding night, Song Xizhi was reborn. This time, she used a scheme to marry the living dead He Jingyan. But who knew this living dead man would be so valiant and robust, and she wouldn't even have to endure widowhood...