During the peaceful Daming Dynasty, Yuan Mo, a commoner from Changle City, encounters A Shu, a refugee from Yanle Kingdom attempting to sneak in at the city gates. This conflict leads to Wang Kunwu being punished for failing to oversee his duties as a border general. As a consequence, Yuan Mo is inadvertently pulled into the Four Square Pavilion, where he forms a team with A Shu, Wang Kunwu, and Yuchi Hua. Together, they confront complex diplomatic challenges in their quest for justice and patriotism.

Tan Jianci, Zhou Yiran, Du Chun, Kan Qingzi, Wei Zixin, Zhang Shulun, Chen Xiaoyun, Joe Xu, Wang Chengsi