In the last life, she helped her scumbag husband transform from prince to new king, but he turned around and gave her poisonous wine and made her sister his queen.
In this life, she went directly to the scumbag's biggest rival - the crippled emperor's uncle who was abandoned by the emperor and was waiting to die on the border. She smiled like a flower and said, "Your Highness, do you want to be the emperor? I can help you."