Bad News!
They weren't actually living on these ten worlds! They got secluded pocket worlds where they remained and lived their normal lives at.
That meant if the third layer wasn't triggered, such races would keep living peacefully like they weren't doing something terrible or anything.
Realising this made me feel quite sick. Such a race was worthy of being called fiends and not Holy Ones.
According to her, each world had around one hundred attached pocket worlds. Detecting these worlds' openings or entrances wasn't an easy task at all. And without the activation of the third layer of defence, they wouldn't reveal themselves at all.
She said that when this fourth layer had a standard code of action. When this entrapment zone was established, the fiend ancestors brought out ten billion race members with them.