Six hundred years ago, there was no light in the prison.
Six hundred years later, the city of Beijing is brightly lit.
A Qianhu who came from the darkness met the detective guarding the light.
What they are pursuing is not just murder cases,
It is a chess game that spans time and space,
A choice about going home or staying,
A love that grows in blood and fire.
History cannot be changed, but the future can be created.
