This herb seller, after thinking for a long time, - Well, I'll help you, but you have to understand two things. First, you should not directly poison your mother-in-law. People will know. I'll give you a slow-poisoning herb. So no one can guess. Second, you should be kind to your mother-in-law. Then, after he died, if no one wakes you up, she agreed and took the plant. He came home and added herbs to his mother-in-law's food little by little. Her mother-in-law, who saw this change, loved her daughter-in-law, and praised her daughter-in-law, the best daughter-in-law, the daughter-in-law one could only dream of, and loved her sincerely. About half a year had passed, and the relationship between mother-in-law and daughter-in-law, mother-in-law and daughter-in-law were good. The girl ran to the herb seller and said, "God, please help me, give me an herb that will save my mother-in-law from poison, and I will pay for it." The herb seller smiled and sat down for a while, "Don't worry, girl, I am poisonous to you." It was just a seasoning without herbs. But that poison was in your head, you got rid of it yourself. It is good, he said.