The earth has fallen into an ecological crisis due to over-exploitation. The "sun" is some kind of large-scale facility built by humans to save the earth, but in fact it is sucking the earth's vitality. After Lin Xia woke up from the training cabin, she only had maintenance instructions and numbers. Humanity has experienced major disasters, civilization has suffered heavy losses, and many people have lost their memory and been transformed into individuals to perform specific tasks. Under the ancient revelation of "use bones as needles and blood as threads", Lin Xia's bloodline and the power of star fragments are bound to the fate of the earth. In the face of the grand destiny, Lin Xia has no choice...