Mirror Earth

The story takes place in another parallel universe. There is also a planet here that is exactly like the Earth. To show respect. Just call it Mirror Earth. The civilization on Mirror Earth is roughly the same as that on Earth. But. There is one place that is completely different. That is, there is a virus on the mirror earth that existed before humans were born. Super ancient virus. Filter. It's for humans. It's eternal damnation. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.