In the troubled times of the late Qin Dynasty, Mo Yan, a young craftsman slave in the Lishan Mausoleum, awakened to the Mo family's lost inheritance "Mo Heart" after the tragic death of his parents. Starting from building the first bone saw rock drill, he embarked on an iron-blooded journey to overthrow the Qin Dynasty with machine skills. Folding ladders broke through fortified cities, bronze mechanisms and beasts split battle formations, and resonant bells disrupted thousands of armies... Mo Yan stirred up the storm with world-shattering weapons, helped Chen Sheng, unite Liu Bang, and resist Xiang Yu, becoming the "chief craftsman" respected and feared by the princes.
But technology is like a double-edged sword. The behemoth machine went out of control and crushed women and children. His former ally Liu Bang hid murderous intentions, and his beloved Azhi blocked his arrows and wrote a blood letter "Don't forget to love each other". In the blood and fire of Julu and the sword light of Hongmen, Mo Yan saw that technology had been turned into a killing tool, and fell into deep confusion. He burned the siege map, established the Three Commandments, and built the "Tiangong City" on the cliff of Shu Mountain to benefit the people with water and agricultural tools.
When Liu Bang proclaimed himself emperor, the birds disappeared, and the flames that burned the people's livelihood drawings reflected the Weiyang Palace in red. Mo Yan detonated the magnetic mine and destroyed Tiangong, and escaped across the sea with the wisdom passed down from generation to generation, "The Book of Righteous Dao of Tiangong". Amid the steam roar of the Penglai giant ship, he sealed the secret record of the battle in the abyss of the ocean, leaving only the motto "The weapon is not to blame, but the ideal is biased."
From the Lishan blacksmith to the remnant of Canghai, Mo Yan used his machine skills tempered by blood and fire to overcome the imperial hegemony riddled with bones, and finally built an immortal beacon of knowledge in the deep sea. The gears stop turning, but the fire is endless - the real world is not in the temples, but in the plowshares of the people's hearts.
