natural disaster, there was a extremely heavy rainstorm

At the S City rescue station, Jeff and Neil exchanged thirty potato locust cakes with their meager points, which would be their food for the next ten days. Six years after the apocalypse, in a world who had experienced multiple disasters, food became incredibly precious. Plain white rice had long disappeared, and now the best food was pure potatoes and sweet potatoes; potato locust cakes came next, and the majority of people were eating cakes made of potatoes, sweet potato vines, and tree roots. For Jeff and Neil, exchanging thirty potato locust cakes at once undoubtedly made them the golden children in a world plagued by hunger. Not long after leaving the rescue station, a group of people followed them. "Hurry, catch up! Those two women went into the alley!" On the wide street, a bald man and seven or eight others hurried towards the nearby alley. In the alley, Jeff miraculously conjured two fire axes out of thin air. "Neil, don't rush out yet. Let me make some trouble first." Neil took the axe from Jeff, nodding slightly. "You lead the way."