Fiancée Falls in Love with Younger Brother? Decisively Choose Sister-In-Law

[Single female protagonist + funny + slightly sweet knife + diaosi CEO's first perspective] Xu Yang worked half his life for the family business Xu, but was betrayed by his mother Sun Yan, his brother Bai Chen, and his wife Shen Yun, and burned to death in the Xu family. His mother put his father in jail, and his younger brother hooked up with his wife. Xu Yang would never forget the pain of being deceived until his death. After his rebirth, he vowed to take revenge. However, in the process, he became deeply friends with his sister-in-law, who had almost no interaction with her in the previous life, and discovered that the two of them actually suffered from the same illness and had similar experiences. While fighting against the misfortunes of their original families, they became the light in each other's lives, healing and supporting each other.