In a future Earth ruled by super AI, survival is on thin ice. Lin Xia, a girl struggling to make a living, became a substitute due to an accident. By accident, she implanted a mysterious chip and obtained the "Light Chaser" system, and then embarked on a counterattack. Xiao Jin, a talented young man who can do decathlon but cannot take care of himself, comes to her rescue and protects her behind him. The words "You are my exclusive substitute" start the fateful bond between the two. On the field, they work together to break records; off the field, they have to fight against the strict monitoring of AI and the pursuit of law enforcement robots. In this cold AI era, can they shine in the arena, or can they break through the rule of AI and pursue their own light of freedom?
