Dragon City, the legendary realm of Poseidon.
The Double Dragon Mirror is a sacred object of Dragon City unearthed in 2008 AD.
By chance, Liuying, as a female special police officer, was responsible for protecting this rare treasure, but unexpectedly her former boyfriend, the source, came to steal it...
The two of them accidentally traveled to the gate of Dragon City N thousand years ago...
Met Bai Shui, the eldest princess of the White Dragon clan, who returned seriously injured.
The white dragon priest Guanglan divined at the same time that there would be three visitors from time and space, who would change the fate of the eldest princess...