You fill in a space time hole while hiking in the mountains and get sent to an ancient time from this world maybe from another world it might be but you wake up in a ancient tribe that teach you there ways and accept you in there lives and you find out that there only food is from fruits from trees and this fruits Come with different tastes and they use the fruit as currency and there sexual life is with currency as will if they are not married the women can sell there bodies for sex for a certain number of fruits and they use it in trade from other tribes for all sorts of things.