When the apocalypse came, Yu Yi was in x city for a study tour organized by the school, and Chi Chexing happened to be in x city. With the city full of mutants and without water, power or signal, Yu Yi had no choice but to knock on the door of Chi Chexing, a netizen for many years... And thus embarked on a journey of teaming up with multiple people, possessing superpowers, and leveling up along the way.