😋I recommend you a novel called "The Strongest Black-bellied Woman on the Surface". It's an ancient romance novel. The female lead was a cold, black-bellied, and shrewd killer. She was saved by a world-renowned divine physician and fell in love with him. However, fate played a trick on them, and the two of them eventually broke up. The female protagonist was resentful and hated love. Many years later, she realized that there was someone by her side who had been protecting her, but she had never believed in love and ignored him. But when she finally realized it, her fate had come to an end…The whole story was heart-wrenching from beginning to end, even more so than Ye Ningxi and Canyin. The female lead's ruthless character setting and strong character also met your requirements. I hope you like my recommendation, Mwah ~😗