Capítulo 337: 5.18.1 Old beliefs.

This world was a hateful one. 

Not on the account of the misery of the weak or the tragedies that taking place all over the world each second.

No.

The reason it was hateful was for one reason.

"What about tent D7? Is there a chance they would survive?" 

"No, the disease has progressed too much, the medicines would be wasted on them. So take care of them." 

It was that this world had no humanity.

Kindness and civility was the tool of the weak, which they used to protect themselves and their mentality. Thinking that if they don't do anything wrong, nothing would happen to them.

But for the powerful, the moment they deemed to trash, you will be burned to death. And that's what happened to the Tent of D7, where the ill were kept along with their families.