Iron Bone Casts Light

Mechanical engineer Chen Yan was accidentally electrocuted while debugging a model of ancient weapons. He opened his eyes again and fell into the Huai River mass graves in the late Nanliang Dynasty. Bamboo arrows were stuck in his shoulder blades, his consciousness was burning with high fever, and he was surrounded by rotting corpses and starving corpses - in this chaotic world similar to the Five Dynasties and Ten Kingdoms, even his breath was filled with the smell of blood.​ Liu Laoshuan, who was at the mass grave, gave him half a bowl of muddy water and pointed out a way out: go to Anzhou Army Farm to exchange for food. But the work jacket he wore was proof that he was "alien", and the arrow wound on his shoulder was a reminder of his death. What's more terrible is that he didn't even understand the basic rules of survival in this era.​ The hooves of the routed troops crushed the last bit of luck, and Chen Yan clutched the tactical bracelet hidden in his sleeve - this was his only support. When the Anzhou army was still fighting with broken arrows, he had already calculated the labor-saving angle of the curved shaft plow; when the craftsmen were worried about iron ore, he could burn medium carbon steel that changed the situation of the battle; when the Xianbei cavalry knocked the pass south, the trebuchet he designed was calibrating the trajectory.​ From the death struggle in the mass graves, to the blazing fires by the Huai River, to the clanging iron hooves in the northern grasslands. Chen Yan gradually understood that instead of making sharper knives, what this era needs more is the confidence to allow the people to stand upright, and the power to prevent the territory from being trampled by iron hoofs.​ He took modern knowledge to take root in the troubled times, using iron as bones and blood as ink, to create an unprecedented dawn in this broken mountains and rivers.