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Veronica and Ervas group were joined by a silvery-white-haired beauty with gray eyes and slender, tall figure, this was Yggdrasil, the Tree made by the twins to deal with the Hivemind and the Crystal Tree they had spoken with before.
Due to her fear of them messing around with the Erveronians she was taking care of with a lot of care, she decided to join them in their stupid little trip to entertain themselves, ending up interacting with people for the first time in such a personal level as this.
The Erveronians acted pretty much like any other people they had ever met in Kritias, their society wasn't different at all in terms of structure, although there were certain things that were obviously different, such as that there wasn't any class system, and everyone had the same opportunities since being born and depending in their own efforts is where they would get to.
Check "The Protagnist's Sister Is Actually the Strongest"!