Time and space background: modern Xi'an and Qin Dynasty Xianyang intertwined
Time travel mechanism: With the help of the mysterious Qin Dynasty bronze mirror "Moon Shadow Mirror", you can travel through time and space under specific moon phases, but each time you travel through time, it will have a butterfly effect on reality.
Core suspense: the true origin of the bronze mirror and the thousand-year mission of the guardian family
Love theme: fateful love spanning two thousand years, the conflict between personal emotions and historical responsibility
Concept: Love in mythology