One Person and One Dog Survive in the Apocalypse

When Su Jiu turned 18, she learned that her grandmother, who had raised her by picking up garbage every day, was not her grandmother, but a lonely old man who had picked her up while out picking up garbage one night before she turned 18. There was no birth certificate on her body, and her swaddling clothes were just ordinary particles. Just because she was a girl, she was so ruthlessly abandoned. It wasn't until she was 18 years old that her grandma told her about her life experience when she was confused, and gave her an ancient box, telling her that if she had difficulties in life, she could open it and take a look, which would solve the immediate difficulties.