In the hidden corners of modern China, there exists a special group with a thousand-year legacy: the Sand Wardens. They are not an official organization, but guardians who have protected seven mysterious sites across China for generations. The ancient artifacts buried at these sites are actually interstellar devices left behind by a lost civilization. Every seven thousand years, they trigger an astronomical phenomenon known as the “Seven Stars Align.”
Main Story:
Xi’an antique shop owner Xu Yicheng unexpectedly inherits his grandfather’s Sand Warden token. Together with Su Yuqing, the daughter of an archaeologist, and Zhang Ye, a veteran, he forms an expedition team. Guided by the mysterious woman Luo Qingyi, they search for seven artifacts of the Underworld scattered across the country. As they delve deeper, they discover that the artifacts produce a strange “crystal symbiosis” with the human body. The so-called Netherworld Bureau is actually made up of descendants of the ancient Jiuli people, who are trying to reactivate the “Eye of the Underworld,” a portal capable of connecting to extraterrestrial civilizations.
