Foreseeing the global catastrophe, I sealed off the entire city in advance.

In a world on the brink of devastation, a catastrophic chain of events unfolded, bringing about an unprecedented era of destruction. The planet was ravaged by unrelenting natural disasters, including biting cold snaps, tempests that shredded the landscape, and colossal walls of water that inundated coastal areas. The very foundations of the earth were torn asunder by seismic activity, while a mysterious virus triggered a zombie-like pandemic, giving rise to grotesque mutations and unleashing hordes of ferocious creatures upon the land. Civilization teetered on the edge of collapse as the rule of law gave way to chaos. Lin Chen, having lived through this dystopian nightmare in a previous life, endured five years of unrelenting struggle, only to witness the demise of his loved ones and the annihilation of his hometown. Reincarnated, Lin Chen found himself returned to a point three months prior to the impending catastrophe, armed with the bitter knowledge of his past experiences and a haunting foresight of the calamities to come. No longer paralyzed by fear or uncertainty, he channeled his resources into transforming his city into a bastion of survival, amassing vast stores of provisions, unearthing hidden sanctuaries, and erecting a labyrinthine network of lethal defenses to shield against the impending onslaught of earthquakes, tsunamis, and extreme weather events.