The end of the world does not come overnight, but begins with a seemingly ordinary continuous rainy season.
At first, people thought it was just an abnormal rainy season, but the rain continued, sometimes drizzle, sometimes heavy rain.
As rainwater continues to accumulate, water begins to accumulate in low-lying areas of the city, and the bottom floors of houses are gradually submerged.
As the water level continues to rise, the corpses of animals, poultry, and unfortunate human corpses in the city are soaked in stagnant water. These corpses begin to rot and deteriorate under special environmental conditions. At the same time, as the water surface rises, fish that originally lived in the rivers flood into the city, and they eat these rotting corpses in the process of looking for food.
What's even more frightening is that chemical wastewater from some pharmaceutical factories in the city leaked under the impact of floods, polluting large areas of water. The combination of these chemically polluted water bodies and corpses produced strong chemical reactions, giving birth to countless terrifying mutant creatures.
These fish monsters continue to evolve and eventually become more terrifying fish corpses - they are an aggregation of dead creatures, formed from the fusion of countless dead marine creatures and human corpses. They possess unimaginable attack power and intelligence, posing a huge threat to mankind. What is even more shocking is that with the deepening of mutation, some long-extinct prehistoric fish and ancient insects have also begun to resurrect, and they have reappeared in the ocean with ancient terror and powerful power.