Doomsday RV: Stock up on Unlimited Goods and Make Money as a Charterer

In the end of the world, you are being chased by zombies, but you have no powers or helpers. What can you do to survive? Ruan Shishi had no choice but to escape. Just as he was about to be overtaken by zombies—— She bound the system and got an upgradable RV! [Congratulations to the host for binding the RV system. The RV integrates hostel, security, storage, living, etc., Ensuring that the host can live comfortably in the end of the world. Ruan Shishi, who found that she could still survive, started the journey of upgrading her RV. "If you kill zombies, you can get a lot of points and get crystal cores?" "Can points be redeemed for all kinds of food, items, weapons, etc.?" "The RV has been upgraded to be equipped with weapons and its defense will be stronger?" Ruan Shishi cheered up completely. Why are you still doing this? Kill her!