Gu Yan, the top assassin trained by the Underwater Organization, is codenamed "Zero 7". His body was transformed by the Bai family's "Prometheus Project", and his senses were as sharp as a knife, at the cost of his life passing by like an hourglass. After the last mission, he planned to fake his death to escape, but was hunted down by the organization to the brink of death.
Bai Qiuchi, a rebel in the Bai family, left the family to find his missing sister and became a doctor. On a rainy night, he rescued Gu Yan and found that the traces of experiments on his body were related to his sister's disappearance. The two reached a deal: Gu Yan provided clues, and Bai Qiuchi helped him get rid of the organization and delay the decline of his life.
From alertness to symbiosis, they gradually get closer to each other's deepest scars during their escape - Gu Yan's past that was destroyed by the experiment, and Bai Qiuchi's obsession with the whereabouts of his sister. In the abandoned church, Gu Yan burned his life to stop the bullet for Bai Qiuchi; deep in the gene bank, Bai Qiuchi tore off his mask of calmness and sealed Gu Yan's death declaration with a kiss.
When the truth emerges, they must face a common enemy: the cold laboratory of the Bai family, the bloody pursuit of the Dark River organization, and the "cage" in Gu Yan's body that is constantly devouring life.
"If the senses are chains, you are the only key."
(Sci-fi suspense + strong confrontation, a hard-core redemption story in which the two male protagonists use each other in a desperate situation to rely on each other for life and death.)
Intent: In the cage of technology and violence, only human warmth can ignite the fire of freedom.