After the Whole City Had a Power Outage, Only My House Was Lit

Overnight, the whole city lost power, but the lights were brightly lit at the home of maintenance worker Xu Chuan. The stranger followed the light and knocked on the door, and another voice of "Xu Chuan" came from behind the wall; every additional minute the light was on, the clones, abnormal shadows and streets that did not belong to reality were one step closer. Xu Chuan soon discovered that his power supply was connected not to the city power grid, but to seven river cities that had stopped in different years. Every time a door is opened, a group of survivors may be rescued, or an entire disaster city may invade reality. In order to keep tens of thousands of refugees alive, Xu Chuan must build a new city amidst water shortages, food shortages, identity confusion, and the collapse of the time layer. But when the old city demands the sacrifice of "worthless people", the mother city tries to reclaim all branches, and even relatives appear in multiple versions, Xu Chuan must make a choice: Who is qualified to be called a real person? If a city wants to continue to shine, who should bear the cost?