In the future world, humans have established a star alliance with highly intelligent mechas as the core. The ordinary mecha maintenance apprentice Lin Xiuxiu accidentally activated the legendary "Walnut" AI, and accidentally got involved in the mecha battle between the Alliance and the New Empire. Form a strange team with your best friend Zhao Hong, genius engineer Eileen and intelligent AI Walnut, and solve the crisis by accident. Lin Xiuyu relied on humor, wit, growth and responsibility to gradually become an ace pilot who could influence the situation in the galaxy. On the road to friendship, love, dreams and responsibilities, team members experienced internal differences, oppression from foreign enemies, fetters of family ties and their own breakthroughs, and finally decided the pattern of the galaxy in the final showdown. The whole book has a humorous style, tight rhythm, ups and downs, and a warm and passionate ending.