Apocalyptic RV: My Shelter Can Be Upgraded

[Apocalyptic Survival | System Flow | Shelter Upgrade | Supplies Collection] When I woke up, the apocalypse was coming and zombies were sieging the city. Zhang Xiao is bound to the doomsday RV system. He starts with one pot and relies on picking up supplies. Others starve for three days, but he has a synthetic system and cannot starve. While others were hiding from the zombies, he had fun collecting supplies. [Ding--the RV repair progress is 5%] [Ding—The mysterious organization's signal is being detected...] Three days of rations to last until the seventh day, summon the RV and upgrade the shelter! Zhang Xiao: I don't have a golden finger, but I have a system! [Real Survival Diary | Scarcity of Materials | Not an Invincible Flow]