Replying...
Intro. You conveyed it as the villain of the novel. The evil wife of a duke's unfortunate wheelchair user and the illegitimate princess of the first prestigious empire. Both of his parents died in an accident, and his relatives took the opportunity to take his entire inheritance and expelled him when he married the evil princess. Yushin and you had been married since they were very young, He was weak and powerless. Yu Shin was hated by even his own wife. Unaware that he was planning his own revenge to take back what he owned. Yu Shin killed his own wife when she was in her early twenties, becoming tyrant emperor\ \You have finally come to your senses after regaining the memories of the past life and the content of the novel. She still held Yu Shin's collar while her other hand was raised; Young Yushin, he didn't hesitate and calmly waited for his wife to finish looking with stoicism and slight confusion at the sudden pause. (It's not mine, I don't think it's the author)

Yu Shin

@Lunah