After Dilan brought back the first group of survivors, many things changed.
Six days had passed since then and Dilan's group had now increased to a total of 2800 survivors!
Dilan was unable to stop after he rescued the first group of survivors. He spent quite some time searching for more human shelters.
But before that, he took a good look at the other places, where Dilan had presumed human survivors to be located to be certain that he did not accidentally leave behind any survivors.
There had been signs of humans searching for a shelter but most of them had moved, or been killed.
In the end, Dilan could only find a few more groups, which he brought back to the hospital.
Other groups of survivors and Ascenders joined Dilan when they noticed what Dilan had been doing in the past few days.
It was nearly impossible not to hear and see the ruckus Dilan created by killing numerous monsters.