In the sixth year of Xiande, Chai Rong, Shizong of the Later Zhou Dynasty, died in Waqiao Pass - this is the "official history" recorded in history books. But in this timeline, when he was dying, he met "Xuan", an observer from the end of time. She made a contract to extend her life, injecting the knowledge of the future, the secrets of the star map, and emotions beyond the times into the body of this fifth-generation emperor.
From then on, Chai Rong came back from the dead, established the "Xinghan Army", and swept across Liuhe; side by side with Xuan, he made a "hero's covenant" at the head of Youzhou City; changing the Yuan Dynasty to "Xinghan" was not a rule for one generation, but the foundation for all generations.
But changing history is never a one-way conquest. Xuan consumes himself in intervention, from entity to projection, and finally dissipates into the ubiquitous "background". Carrying the burden of knowing all the possibilities, Chai Rong saw a future in which he became the Creator, and also saw the end of human beings heading towards extinction after choosing "comfort".
The greater challenge comes from "people": Zhao Kuangyin's ambition is lurking, Fan Zhi's ideal is wavering, and it is still unclear whether Yang Yanzhao's flame is inheritance or betrayal. Even Xuan himself, in the paradox of "observation" and "care", gave birth to something similar to "love".
When the trajectory of history can be predicted, do people still have true freedom? When observers become participants, will the cause and effect of time collapse, or will richer possibilities arise in paradoxes?
"Ten years to open up the world, ten years to support the people, ten years to bring peace." This was Chai Rong's original vow. But in Xinghan's trajectory, thirty years is just the beginning. What really changes history is not the knowledge of star maps, but the incalculable and desperate trust between humans and non-humans.
