Allusion: At the end of the Eastern Han Dynasty, when the Three Kingdoms were fighting for hegemony, Sun Quan wanted to get Jingzhou back, and Zhou Yu offered a plan of "fake relatives and taking hostages". Zhuge Liang saw through it and arranged for Zhao Yun to accompany him. He first visited Zhou Yu's father-in-law, Gong Qiao, who persuaded Wu Guotai to meet in Kanluoji, and Wu Guotai really married Sun Shangxiang to Liu Bei. Sun Quan and Zhou Yu were ridiculed as "Zhou Lang's brilliant plan to secure the world, losing his wife and losing his soldiers". (In real history, Sun Quan married his sister to Liu Bei for political reasons. )