The world begins to collapse, and human survival is once again facing challenges.
Light green rain fell from the sky, and the sun's rays made human skin tingle. People wandering on the streets at night were found frozen to death on the roadside. Cats and dogs in dark alleys were bleeding and staring at passers-by. The world was changing in a strange direction.
Concept: In a collapsing world, the last copies of human beings are each other.