Lin Yu is a devoted Three Kingdoms fan who spends all day immersed in its historical stories and games. One day, as he stays up late playing a Three Kingdoms game, a brilliant flash suddenly fills the room, and light from his computer screen envelops him. When it fades, Lin Yu finds himself in a wilderness, surrounded by soldiers in ancient clothes carrying weapons. He realizes he has transmigrated to the Three Kingdoms era. (Alternate history.) The story follows the direction and framework set out in this novel.