In the dark night of Harbin in 1938, a deadly spy battle across time and space quietly awakened.
Lin Mo, a modern special soldier, was reborn as a clerk at the Puppet Manchukuo Police Department in the explosion, but was bound by the "Listener System" - he can eavesdrop on all confidential conversations within five meters, and can temporarily transform into others through DNA. But each transformation eats away at his life: the hemoglobin crystals are dragging him toward the abyss of death. When he discovered that the corpse of a Japanese army major in the morgue was actually a clone of his previous life, a conspiracy that had been carefully laid out for eighty years came to light.
The cold and charming surgeon Zhang Qingxuan is his only ally and a fatal variable. Her scalpel can decipher the codes of germ warfare, but she has a top-secret Kwantung Army tattoo hidden under her kimono. The two forged evidence on the autopsy table of St. Sophia Hospital, exchanged quantum secret messages under the Jihong Bridge, and discovered the shocking truth in the cracks in time and space - Lin Mo's genes were actually the original mother body of Unit 731's "Cliff Flower" project, and every death would give birth to new cloned spies.
When the floor tiles on Central Street cracked and the brainwave map began to crack, and when the quantum clock of the Harbin Fortress began to reverse, the fateful alliance between 1938 and 2023 must make a choice before the hemoglobin is completely crystallized: destroy all time and space to end the closed loop, or become a perfect spy that spans a hundred years? At this moment, the Asia train is carrying tons of cloned embryos towards a turning point in history. Under the ice of the Songhua River, the red kite will eventually bloom...