The Immortal Doctor's Divine Son-in-Law

An untested miracle pill, passed down through generations, sets Li Chengfeng, a good-for-nothing live-in son-in-law, on the road to a triumphant comeback. With a turn of his hand, he steps onto the path of cultivation; with another, he roams the City of Flowers, free and unrestrained. Neither gods nor demons can stop him as he rises to the pinnacle of medicine and martial arts!