the immortal cultivation genius su yishui (played by deng wei), was changed by his master mu qingge (played by xiang hanzhi) 18 years ago. mu qingge, who has always been rebellious, also died of stigma for this. eighteen years later, mu qingge turned into xue ranran, and su yishui, who had succeeded as the head of the xishan sect, brought ranran, who was weak and dying, to his subordinates.