However, all the occupants of the brothel, including three famous martial artists, are mysteriously killed overnight by a deadly potion known as the "Heaven's One Holy Water".

With help from Song Tian'er, Su Rongrong, Zhongyuan Yidianhong and others, Chu Liuxiang succeeds in clearing his name and exposing the true identity of the perpetrator, who turns out to be actually his friend Wuhua.

With the aid of his friends, Chu Liuxiang foils Shiguanyin and Wuhua's plans and helps the king regain control of the Moon City.

The palace ruler, Shuimu Yinji, mistakes Song Tian'er for her long-lost daughter and showers her with love and care.

Chu Liuxiang arrives at the palace with Li Hongxiu and Zhongyuan Yidianhong to rescue his friends, and engages Shuimu Yinji and her followers in a fight.