After the Natural Disaster and Heavy Rain, the Whole Building Wanted to Hug My Thigh

Heavy rain destroyed the world and floods besieged the city. Lin Wan was reborn and returned to before the tragedy. This time, she decisively bound the [Doomsday Survival System]. When her former neighbor was beaten to death over a mouthful of dirty water, her space was filled with pure water and self-heating hot pots. When a gang of bullies broke into the house to steal food, she emptied their lair and accepted all the supplies. The neighbors who once looked down on her are now blocking her door with red eyes: "Lin Wan, please give me some medicine, I'm willing to do anything!" "Sister Wan, let me be your little brother and I will help you kill monsters!" "Xiao Wan, I used to be an aunt, but you have a lot of..." Lin Wan held the purified antibiotics in her hand, looked at the familiar faces begging in front of her, and spoke slowly: "Asking for help, you have to have a asking attitude." "You, go and clean up the zombies at the stairs." "You, use the gold bars you have hidden in exchange." "As for you... When you pushed my mother down the stairs, did you think about today?" Let's see how the queen of the end of the world, who possesses tea skills and systems, establishes her own rules of survival on this isolated island on the water!