After Being Exterminated, I was Reborn and Killed My Son-in-law

I was the sole heir, and my parents worked their fingers to the bone to leave me a hefty fortune.

The grandma living next door to us adopted me after that, and she coerced me into marrying a gold-digger who turned out to be abusive and unfaithful. Every time I wanted out, she played peacemaker, convincing me to stay.

I didn't realize until he murdered me that he was her secret grandson, her golden boy.

After my death, Grandma hurried over, grinning from ear to ear as she clasped hands with my killer. "At last, the inheritance is ours. Oh, my dear, you've really had a rough year."