History bifurcated after the Chenqiao Mutiny in 960 AD. During the Lizong period of the Song Dynasty, "investigating things and rejuvenating the country" was promoted, and science and technology exploded. In the 16th century, the "Tiangong Qi" (a high-dimensional energy source from the earth's core) was discovered and entered the electrical age; in the 20th century, the Song Dynasty unified the world and established the "Song Dynasty Earth Federation". Lu Chen, a lowly miner in the Mobei mining area, is actually the son of Lu Shouren, the former dean of Tiangongyuan who was falsely accused of rebellion ten years ago.
