Late autumn, 1933. Nanjing is shrouded in river fog and gun smoke.
When the code of an ancient star chart collides with a bloody world of espionage,
blue skies split like silk, and a flaming kite plummets into the river.
The ancient chart conceals a sharp edge; a bronze case secretly draws starlight.
A deadly game of chess, played with stars as its code.
Who can turn the bronze key that hangs over the nation's fate?
The only things that can pierce the darkness of 1933
are stars tempered in fire, and hearts that have yet to be extinguished.
In the cracks of history, the stars are the only code