**Protagonist**: Xiang Yi, a modern history student and young military officer, transmigrates into Xiang Yu on the eve of the Battle of Julu. He inherits not only Xiang Yu's legendary strength, but also the knowledge, strategic insight, and vision of a modern man.
* **Central conflict**: This is no simple Chu-Han struggle, but a **high-stakes contest between “known history” and an “unknown future.”** Every step the protagonist takes is like walking a tightrope: he must make use of his knowledge of history while staying alert to the “butterfly effect” his interference may cause.