On July 7, 1937, the Japanese army launched a full-scale war of aggression against China, and China entered a period of national resistance. Xiao Yuxie received instructions from his superiors and headed to the Shanghai base area. During this period, she was cautious and saved time and again, and met Xu Zikong, a comrade who had the same belief. But the sudden arrival of Tokugawa Akito, Japan's deputy superintendent, continues to hinder the implementation of the plan. Faced with this dilemma, how should they solve it? (This book is purely fictional, and I am not very good at history. Please correct me if there are any mistakes.)