Zhao Qingyang, a delivery boy with a simple personality and harmless to humans and animals, lives a peaceful life delivering food and feeding stray cats every day. His best brother, Wang Hao, was his childhood friend. The two grew up together and were brothers.
Until that night, Zhao Qingyang spent the night at Wang Hao's house and woke up in the middle of the night to find that he was tied to a chair in the basement. Wang Hao stood in front of him, with a cold smile that he had never seen before: "Qingyang, I'm sorry, you are too naive, and your existence is a waste of resources."
It turned out that Wang Hao was secretly cooperating with a mysterious organization to sell Zhao Qingyang's "soul" to a laboratory called "Qianyuan" for experiments. At the last moment when the experiment was about to be completed, Zhao Qingyang awakened a strange ability in despair - his shadow suddenly came to life and turned into a clone exactly like himself, instantly shattering the laboratory's restraint device.
Zhao Qingyang escaped, only to find that Wang Hao had taken away all his property and owed huge debts in his name. What's even more frightening is that Wang Hao implanted some kind of "tracking seed" in his body, and he will be found no matter where he escapes.
From then on, Zhao Qingyang must use his ability to transform into a shadow in this conspiratorial city to battle wits and courage with his former best brothers to uncover the shocking secrets behind the "Qianyuan" laboratory.
But what he doesn't know is that his shadow is not only a clone, but also hides ancient power that can change the world...
