Lin Xiaojia, a young amusement park mechanic, is suddenly transported to a parallel world ruled by the mighty Zhaoming Dynasty, an industrial superpower driven by steam-age innovation.
When Japanese onmyoji launch an invasion using mutated monsters, the empire faces its greatest crisis in centuries. Its last hope lies in Zhongkui, a legendary giant mech that has remained dormant for over a hundred years. To everyone's surprise, Lin becomes the only person capable of awakening it.
As advanced machinery clashes with ancient sorcery, Lin joins forces with a brave princess to fight against overwhelming odds. Together, they must uncover the secret behind Zhongkui and protect the future of an empire standing on the brink of destruction.