Rules for surviving the apocalypse for sickly beauties

Introduction: A heavy rain that lasted for a year plunged the earth into an unprecedented crisis. After the protective net was activated around the world, the heavy rain stopped abruptly. I thought the crisis was over, but little did I know that in the calm after the storm, giant vines extending from underneath began to grow wildly. The toughness can pierce through a building made of reinforced concrete. The Code 01 Research Institute has been detecting unknown substances in rainwater for a year, but has not been able to detect what they are. At first, I found that the rats in the ditch below began to grow extremely strong, and began to run around in groups in the streets without fear of people. As the rainstorm intensified, the surrounding animals began to become restless, some grew two heads, and some grew longer. Start with wings