I originally thought it was just a normal typhoon day, but I didn't know that the typhoon brought non-stop rain. What's more, the water was contaminated by nuclear radiation.
Floods inundate cities, one after another
Various mutations also followed. Animals were no longer human pets, and humans even became pets of mutated animals.
The end of mankind begins
Purpose: To tell the story of the changes in the status of humans and creatures after the mutation, and to create a harmonious world.