From the boundless darkness of a mine shaft to the bright sunshine of a schoolroom. Breaking free from heavy iron shackles, he faces a blackboard instead. Lu Zheng, a laborer long subjected to oppression, eventually stands at the lectern and becomes a teacher who spreads knowledge. This is not an epic about emperors, kings, generals, and ministers competing for dominion over the world. He has skills in his hands, new knowledge in his mind, and all the people in his heart. Stranded alone in an unfamiliar era, he relies neither on slaughter nor political scheming. With nothing but his knowledge, he forcibly carves out a road toward the dawn in a benighted and chaotic age.