In 253 AD, Fei Yi, the general of the Shu Han Dynasty, was assassinated at the New Year's Day meeting, which shocked the whole country. Lin Fan, a young journalist who joined the army, as a witness at the scene, witnessed the strange secret words on the murderer's lips. This was not only a political murder, but also a fuse that set off a shocking conspiracy across the three kingdoms of Wei, Shu and Wu. When all the clues pointed to internal friends and external powerful enemies, Lin Fan found himself in a huge net. He formed an alliance with the loyal Yulin Lang Zhang Shen and the intelligent Soochow Princess Sun Yu, chasing the shadow of a mysterious organization called "Han Chan" and its "Xuanwu Project". The clue points directly to the secret legacy left by Prime Minister Zhuge, which is enough to overturn the balance of the world.