Plot: The five defending team players launched the final challenge for the championship. They are Shao Xutao from Tsinghua University Harbin who has defended the championship for 11 consecutive rounds, the 12-year-old place name Feihua Ling Xiaowang Taiyuan Xu Zizheng, and the soldier brother who is determined to defend the square and loves place names Luoyang Chen Peng, Gu Zhenqi, a powerful place name expert who "starts a business with many difficulties and many battles", and Siping Wang Haiyan, a calm and knowledgeable middle school history teacher