In 2157, former ace commander Lin Xiao became a marginalized person due to a fatal mistake. After his rebirth, he hid in a dilapidated settlement. He was burdened with guilt and memories of failure until the mysterious system "Dawn" appeared, giving him a chance to regain his power with his life as a bet. In the process of uncovering the conspiracy of quantum crystal nuclei, he and genetic researcher Su Li went from confrontation to alliance, but their trust was repeatedly torn due to conflicts of beliefs. When a close friend died again, Lin Xiao began to question the nature of the system - is it a tool for redemption, or is it the mastermind controlling the overall situation? Faced with the bewitchment of Cyber Dawn, the hostility of the resistance, and the oppression of the three major camps, Lin Xiao must make a choice: rely on the system to control the future, or close it with his own hands and restart the war. The ultimate showdown between humanity and technology begins.