The female emperor (Qu Ying) was deeply troubled by the legend that "two flowers bloom and the emperor star appears", and the world was in chaos. So she sent her confidant (Daniel Wu) to the mystery, and let Lan Ling (Zhong Xintong) and Hong Hu (Fan Bingbing) fight against the rebel leader (Donnie Yen) and try their best to find the "lone star of the emperor star".
Tantou (Fang Zuming) and Chaitou (Chen Bailin), artists who grew up together with their adoptive father Heimuye (Tony Leung Ka Fai), inadvertently got a treasure stone tablet of Tao Tao (Edison Chen), which were both mistaken for "the lone star of the emperor". Having been followed by Lanling, the two were later attracted by Chun Shao (), who sells male slaves for a living. The four of them started a treasure hunt together and started their own love affairs.
When they arrived at the location of the treasure, they finally saw the real body of the lone star of the Emperor, which surprised none of them.