Please recommend a novel that tells the story of the protagonist trying to get a divorce from his murdered wife after his rebirth.

I recommend "Reborn Abandoned Son-in-law". The main character, Shen Jie, is reborn to ancient times and finds out that his engagement has been broken off. He decided to work hard to prove himself and change his fate. He would no longer be called a good-for-nothing. At the same time, his relationship with his original wife was not good and he wanted to break off the engagement. I believe this book will satisfy your craving. I hope you like my recommendation. Muah ~