Prefer Concubine? I Let the Whole Family Crematorium

I have lived in the shadow of my concubine all my life: I was to be made a princess because of my merits in fighting the epidemic. My concubine cried and said she envied me. My compatriot brother immediately confronted me and said that I had taken the credit from my concubine. In the end, my concubine was made the princess, and I was almost beaten to death for deceiving the emperor. After I got married to the Crown Prince, we became very affectionate. My concubine said that she had admired the Crown Prince for many years, but his love was stolen from him by a knife, so she committed suicide by jumping into a lake. The prince immediately divorced me and married my concubine. My family found me embarrassing and sent me to a nunnery. My concubine still refused to let me go and poisoned me. I was dying, but my biological mother protected my concubine behind her: "Are you planning to give that cup of poisonous tea to your sister? Fortunately, she was not fooled. You are too vicious!" I died in pain under my mother's eyes. When I opened my eyes again, I was back to the day when the emperor wanted to make me the princess.