In the twenty-sixth year of the Republic of China, on the eve of the fall of Beicheng, military agent Shen Yan was ordered to eliminate the spy "Blue Bird" lurking at Yanjing University. The suspect he targeted was Chu Yunshen, who had saved his life at Yuhuatai in Nanjing ten years ago - the young talent with whom he had made a pledge to "Tonghua Wanli Danshan Road", and now he is a world-famous reformist scholar. When the gun was pointed at Chu Yunshen's back, Shen Yan discovered that a confidential document code-named "Blue Bird" contained a yellowed letter with his familiar handwriting on it: "If I finally become your enemy, I would like to transform into a blue bird and come to my hometown in March spring." It turned out that Chu Yunshen had been lurking in the enemy camp for ten years in the name of a "traitor", just to send the last set of data out of Peiping on the eve of the enemy's biological force launching the "Sakura Project". When the city was destroyed, Shen Yan carried Chu Yunshen, who was shot, across most of the northern city. Chu Yunshen said in his ear: "In the next life, I will no longer be a hero. I will only be your Yunshen." In the wind and snow, Shen Yan burned the "Ye Yu Ji" co-written by the two on the tower, and the ashes flew to the skyline before dawn like a blue bird.
Intention: Ashes are like a blue bird
