At this moment, the data transmitted by the nanotracker showed that Ji Xian's body was infected by bacteria and viruses.

Bacteria and viruses replicated endlessly in his body.

Ji Xian's immune cells were completely unable to cope with these bacteria and viruses.

Xia Luoxue's act of feeding Ji Xian salt further burdened Ji Xian's immune system, making matters worse.

The tracking system assessed that the host is expected to survive for 168 hours.

Xia Luoxue stared blankly at the data.

After the apocalypse, the environment was extremely harsh.

Most people have adapted to this environment, and their bodies have been forced to evolve accordingly, resulting in strong immunity to viruses and bacteria.

Survival of the fittest; those with weak immune systems have long been eliminated by the environment.

Only those "nobles" who hid in deep underground shelters maintained their physical condition from before the apocalypse.

But the nobles had already developed gene-enhancing drugs.

Every noble who comes to Earth must have used gene-enhancing drugs.

This medicine not only boosts immunity, but also increases muscle strength and bone density to some extent.

In other words, the bodies of nobles are generally stronger than those of ordinary people on the ground.

The food that Ji Xian carried was all top-quality supplies.

Xia Luoxue initially suspected it was some underground force, but she tried it and found that Ji Xian's body was too weak, which didn't fit the description at all.

Xia Luoxue is more inclined to believe that Ji Xian came from the far south, or from some isolated island refuge.

But now Xia Luoxue has overturned this idea.

"Could it be some secluded paradise?"

That makes it easier to explain.

A self-sufficient world deep underground.

Because they are self-sufficient, they do not need to contact the outside world.

Because they are cut off from the outside world, they have no idea that the people deep underground are no longer able to adapt to the current environment.

Xia Luoxue suddenly realized.

Everything makes sense now.

She didn't know what method Ji Xian was using to block the nano tracker signal, but Xia Luoxue knew that she had to find a way to save Ji Xian!