She is an exorcist who walks in the darkness
He is an ordinary person whose life was saved by her
He is a lonely soul for thousands of years
He is a Japanese boy onmyoji
The original fate was intertwined thousands of years ago. A mission allowed her and him to travel through time and space and return to Loulan a thousand years ago. The wedding princess, the King of Loulan, the second prince of the Huns... He actually turned into a white tiger? She is actually a short-lived Han princess?