While the translation is decent, the source material is pretty trash, as one who is addicted to isekai this one does nothing special and not that interesting. Can name well over 100 isekai that are better.
So they evacuated, then waited outside? instead of going back to help? What's this praying bs. "I don't think two rookie adventurers can fight a hoard a c-rank monster by themselves, but good luck, we'll wait outside for the results."?