After his parents moved from Germany to Norway to escape the city life they ended up in Nyheim after the war, living in a small shack in the woods. Xaviers parents would ultimately end up getting infected by the 21NS virus from where he was left abandoned in a quarantine zone with random people he never knew. From eating out of the dumpsters and sleeping under them to stealing and looting dead people Xavier did anything to survive in the harsh times he faces, although his child hood was rough he always thinks what's best for him and doesn't think for other people.