This is a time-travel novel that spans 17 eras. The protagonist Lin Yichen was selected by the "Tiandao System" to become the "Time and Space Repairer", with the pseudonym "Beiyan Mountain Man". His mission is not to change history, but to repair the fate line that has been messed up by other time travellers. Starting from the Qin Dynasty, he must keep the fire of Chinese civilization in the cruel decision of "letting Fusu die", and in each subsequent dynasty, he will compete with heroes from all walks of life and fight against the villain organization "Time and Space Cleaners", and finally become the eternal guardian of civilization in the endless reincarnation.
