I recommend " A Noble Husband " to you. This novel is a romance novel that travels through ancient times. The female lead had a noble status, but she had become a stepping stone for another transmigrated woman. After her rebirth, she began the long journey of settling grudges for others. In this novel, the female protagonist was poisoned and framed by the female supporting character. The male protagonist was 20 years older than the female protagonist, loved her and saved her from danger. I hope you like my recommendation.