During the Tang dynasty, ghosts and monsters ran rampant, and the people suffered terribly. Empress Wu Zetian ordered Di Renjie to secretly establish an organization to shelter extraordinary and capable people, the Nine Gates Governorate. At last, the chaos was quelled. Now, in 2024, ghosts and monsters have risen again. Can Ling Tian, successor to the Nine Gates Governorate, protect this hard-won peace alongside his brothers?