Li Xuan, the reincarnation of the Mystic Emperor, lives in a world dominated by mechs. Because of his low mech compatibility, he is constantly mocked. However, after awakening his cultivation powers, his combat strength increases dramatically, and he creates an entirely new system that combines mechs with immortal cultivation. Together with his childhood friend, Lin Xue, Li Xuan joins forces to fight against greedy aristocratic families, rampaging mysterious beasts, and villains who manipulate dark energy. After overcoming countless dangers and enduring several great battles, they finally defeat their powerful enemies, break the Heavenly Dao's restrictions, and bring about the revival of spiritual energy throughout the world, ushering in a new era where mechs and immortal cultivation coexist.