Mysterious viruses and disasters broke out around the world, and social order collapsed. Li Shuang formed the "Happy Team" with Chen Duoduo, Fat Hu, Liu Xiaobao, and Aunt Zhao. They used humor and wisdom to resolve crises and turn enemies into friends in the ruins. They went from escaping, surviving, and rebuilding small communities to facing the battle between mutants, cabals, and the doomsday new order. Team members watch and help each other, use sincere, simple but compact actions to resolve recurring crises, support each other in hope and despair, and finally welcome a new dawn and reap the salvation of growth, family affection and friendship. The book has a fast pace, ups and downs of the plot, constant laughter, and full of warmth.