As her reward for completing the quest, Tokitate gets to ask the Game Master whether this alternate world is actually virtual or not... and the answer is that it's an alternate Earth that branched off of the original Earth's timeline. Upon hearing that it's an existing world, Yotsuya trembles with the realization that he killed real people. Once he returns to the real world and resumes his normal life, the Game Master appears before him in the form of a young girl and leads him to a meeting with the next new player.
That means our chances of success 
in that quest did go up
ذلك يعني أنّ فرصنا في النجاح
في تلك المهمّة ارتفعت
Das bedeutet, unsere Erfolgschancen
bei dieser Quest sind gestiegen,
Ciò significa che le nostre possibilità di successo
in quella missione sono aumentate
Significa que a chance de sucesso
naquela missão aumentou
А значит, шансы успешно
сдать квест повысились, когда я