Taking My Best Friend to Build Infrastructure in the Wasteland

[The protagonist group in this article has no cp] Lu Yuan finally bought an RV and was planning to take her sisters out to play, but she didn't expect... He unexpectedly entered a wasteland world full of radiation hazards! Fortunately, with a [Survival Assistance System] in hand, Lu Yuan would not die from the radiation invasion on the spot. But when he turned around, he found that all three of his friends were unconscious. In order to support them, Lu Yuan decided to catch up and survive in this desolate wasteland world! But... Underneath the wasteland are ruins. After driving away the giant hedgehog that accidentally entered the camp, Lu Yuan deeply realized that he could no longer passively defend. She wants to take the initiative! She wants to create a safe fortress base for herself and her friends in this ruined world! A difficult mutant? A nobleman plotting a scheme? No matter who it is, they must make concessions for her infrastructure project!