Rebirth in the Apocalypse: Unlimited Upgrades of Armored RV

[Rebirth in the apocalypse, RV system, stocking up, superpowers] Civilization and order have disappeared, replaced by scorching heat, extreme cold and viruses... Gu Yuan struggled in the apocalypse for five years and became a hero, known as "Master Yuan" on the road. Gu Yuan, who died due to betrayal, was reborn as a college student. At the same time, he accidentally obtained the "Doomsday Vehicle Upgrade System". While everyone's goal is to survive for food, Gu Yuan's goal is simple - to enjoy life!