One is an undercover policewoman in a modern city
Smart and agile, he transforms into a student and performs tasks covertly on campus.
One is a jade-faced young man from the previous generation of the ancient world.
Chic and charming, he transforms into a man and wanders around the world.
Because of a jade ring, the identities of the two people were exchanged.
One is innocent and smart, the other is handsome and unrestrained
Can the two of them navigate the world and dominate the world?
Can the relationship between the two belong to the only one? . .