I'm recommending the novel 'The Eldest Miss's Live-in Son-in-Law' to you! The main character of the story, Li Xian, became a live-in son-in-law in order to treat his father's illness. He gained a lot of knowledge and awakened the system in his body. From then on, he became a divine doctor and a powerhouse, living a different life. Although there was no mention of the fox girl, the main character of the novel also transmigrated to another world. I hope you will like this story. I hope you like my recommendation. Muah ~