Ye, the strongest "memory stealer" in Shenyuan District, constantly steals other people's memories and emotions in exchange for money in order to treat his seriously ill sister Liuli, and for this he suffers the huge pain of losing himself. In order to receive a huge reward, he took on the task of sneaking into the sky area where the "thinkers" of the ruling class were located and stealing the mysterious item "Pandora".
During the theft mission, Ye meets Eve, the elite order officer who is hunting him. During the fierce battle, Ye accidentally stole Eve's sealed memory about the city ruler "Zero" and a laboratory disaster. Eve also learned that she was the daughter of "Zero" and her memory had been tampered with. After the truth was revealed, they were frantically hunted by "Zero" and were forced to join forces with the underground resistance organization in Shenyuan District.
On the eve of the decisive battle, sister Liuli sacrificed her last life and emotions in order to let her brother gain strength. With endless grief and the power given by her sister, Ye counterattacked the Sky Dome District with Eve. In the end, Ye made a crazy decision and stole the core memory of "Zero" - the endless sadness that created the entire twisted world and originated from the destruction of the old world.
The sadness of "Zero" is transmitted to the people of the city through the Internet. The false order is broken, emotions return to the world, and tyranny ends. But Ye also fell into a coma because he couldn't bear the huge memory. Eve stands by his side as the survivors welcome a new dawn of chaos but hope. However, deep in Ye's consciousness, a terrifying secret about the larger world outside the city is quietly emerging, indicating that his real journey may have just begun.
