The Guardian of the Time and Space Tunnel: Emperor Langyogu

Before the Xia and Shang Dynasties, it was a mystery for all eternity. In ancient legends, the Yu Dynasty existed for real, but they were all hand-copied and cannot be used as archaeological evidence. Therefore, archaeologists do not want to regard the Yu Dynasty as the origin dynasty of Chinese civilization! However, when the ancient Chinese document "The Classic of Mountains and Seas" was written, it was already the time of the Xia Dynasty, which cast another layer of mystery on whether the Yu Dynasty actually existed. Han Junjun, as the most ordinary working-class child in modern times, has a strong interest in this mysterious thing! However, by chance and through no fault of his own, he slipped and fell from a high-rise building, causing him to inadvertently enter that world. That's a parallel world. In fear and groping, he and his other self are exploring the future and re-understanding themselves!