Before the Doomsday After Rebirth, I Relied on Stocking up on Goods to Support My Immortal Best Friend

In the eighth year of the apocalypse, mankind is finally on the verge of extinction. The world is occupied by new humans represented by mutated animals, plants and zombies. Destruction and death are everywhere. Stepping into the ruins, looking at the devastated city, stepping on the blood remnants of the old humans, and guarding the door of one of the surviving human bases, Su Xinli was eventually swallowed by the darkness. Behind him were ordinary people with no power, including the elderly, children, relatives, and friends. She was hung on the city gate, and like other superpowers, she watched all hope being spurned by the new humanity, and eventually rotted and turned into dust. But she didn't expect that when she woke up, she would be reborn! Reborn before the end of the world, she was so surprised that she had to worry about it. As a social animal, she only had 500 yuan in change on her mobile phone. She still had to pay the mortgage next month. She also had a social-phobic best friend who lived across the street and had zero physical strength. How should she stock up and save herself, and how could she find a way out for herself and the old humans in the end of the world... Doomsday stocking ➕ natural disaster ➕ double heroines ➕ strong female ➕ no cp ➕ space Lightning Protection: A novel for newbies, there may be a lot of content about buying and stocking up goods for 0 yuan. Both sisters are female protagonists, with different emphasis. There are parts about supernatural powers and immortality, and there will be suitors, but there will not be too much emotional part. If you mind, you can avoid Lightning first.