 By this point, although Li Fuwei still outwardly treated Fu Gongshi as a brother, he was actually suspicious of Fu, and so he made Wang Xiongdan and Kan Leng be in actual command of his forces.Fu resented the treatment but, in response, pretended to no longer care about earthly matters, practicing alchemy with his friend Zuo Youxian ().It was said that Li Fuwei himself was acquainted with alchemy and, as part of the exercise to try to live long, consumed mica frequently notwithstanding the poisons contained therein.