1941, Shanghai Beach. The has-been movie star Shen Mengdie was recruited by the Mei Agency as a dance partner. Everyone thought she was just a vain pawn. No one knows that there are two souls living in her body——
A national security police officer from 2025, calm and meticulous, good at surviving in desperate situations;
An AI agent from 2045 has extraordinary computing power and can see through lies in a second.
They share their senses, take turns controlling their bodies, and move among the Japanese army, military commanders, and underground parties.
Until Shuichi Asano, the head of the Ume Agency, whispered in her ear: "Your heartbeat has changed twice - which one is the real you?"
When the deepest secret is seen through by the enemy, the only choice the two souls make is:
Let him shut up forever.