In the third year of the end of the world, it is extremely cold.
When Shen Qingqiu took over the underground shelter, there was only one living person left - Lin Yan. The prosthetic right arm never talks much and always stands three steps behind her.
She positioned him as "subordinate".
Until she discovers that his prosthetic leg holds a secret.
The prosthesis emits 0.3 Hz oscillations when he sleeps, like someone's left heartbeat. She thought it was just a mechanical abnormality, until on the third day, the same frequency came from the three underground floors of the furnace—it was the signal of the villain Third Butler.
Lin Yan's prosthetic limb and her enemy breathed at the same frequency.
She chased him for forty days. From the shelter to the abandoned experimental station, from the three underground floors of the furnace to the sealed chamber of the deep well.
What she finally found was a record.
In the third month of the apocalypse, someone walked from a deep well to the surface, built a prosthetic leg, placed it in the basement of an abandoned industrial area, carved a line of words: "Prepared for you." And then disappeared. The man did not leave a name. There is only one number: unknown.
Prosthetics are the key. It points to apocalyptic truths, fixes, and a question—
Who is this person standing behind her?
Purpose: Two disabled people, in a desperate situation at the end of the world, by tracing each other's origins and life experiences, complete the mutual redemption from a vassal relationship to an equal alliance - to explore the weight one person pays for another person under extreme circumstances, and the courage required to accept this gift.