The end of the ancient world has come, and devastation has spread all over the land. {Shen Yan} seems to be a fool, but in fact, he is hiding an "infrastructure system" and uses the system to store grain and build cities. He faked his death and escaped and went undercover as a refugee in the enemy camp, but met the reborn girl Su Qingyuan - she brought her past life memories with her, knew Shen Yan's details, and even better understood the villain's conspiracy. The yandere city lord is obsessed with Su Qingyuan, the psychologically twisted counselors plot the city, and the local ruffians loot supplies. Shen Yan relies on the system to join forces with Su Qingyuan to build a safe zone, fight against famines, fight villains, and counterattack from refugees to the king of infrastructure construction in the apocalypse, protecting peace.
