On a snowy night in Handan, the two protons fell asleep with their feet touching each other. Ying Zheng's words "Never defeat Yan" became the warmest fire in Prince Dan's heart.
However, the King of Qin pointed his sword at the six countries, and the past vows were burned to ashes in the ambition of unification. Dan entered Qin again as a hostage, suffered all the cold eyes and humiliation, and fled back to Yan State at night, in the cold wind of Yi River, he bet the survival of his family and country on Jing Ke's dagger.
The cold light seen by Tu Qiong Dagger failed to pierce King Qin's dragon robe, but it ignited the flames of war in the Yan Kingdom. In order to survive, the King of Yan personally beheaded his own son - the neck that had shared half a piece of wheat cake with the King of Qin, and finally became a sacrifice to the powerful Qin.
But the plea for peace in a pool of blood could not stop the Qin army's cavalry after all. In 222 BC, the war in Liaodong was extinguished, and the Yan Kingdom became a faded ink stain on the map. From the youth's oath to the confrontation of swords, from the desperate move to the death of the country, this game that involves personal grievances and the fate of the family and the country is, after all, the most tragic and solemn sound of the bones of the weak under the wheel of the times.
This story, from deep brotherhood to life-and-death struggle, eventually became a sigh in history.