Please recommend an ancient xianxia novel. The male protagonist is similar to the demon lord of the demon world, and the female protagonist is an ancient glazed lamp?

#Seeking an ancient Xianxia novel # The female lead was a glass lamp from ancient times, and the male lead was a demon lord similar to the demon world. The female protagonist used the male protagonist to get rid of a contract, and the female protagonist had no heart. There was no emotion. In the beginning, she hurt some men who admired her. Later in the novel, when she broke free from the contract and became a mortal, she was almost taken revenge by those men. At the end, she was poisoned and almost became a demon. Because she was very smart, her master could not let her become a demon. If she really became a demon, she would die. That's about it. Please, I've searched for a long time but I still can't find it. If you know the title, please tell me. It'll be even better if you have more resources.