In the late years of the Wu Zhou Dynasty during the Tang Dynasty, before the Shenlong coup.
It was a turbulent time, the atmosphere of dynasty change was gradually permeating, under the iron rule of Wu Zetian, there was an undercurrent, people were dissatisfied with the rule of Wu Zhou, and longed for the Li Tang to govern again.
The Empress's health was deteriorating day by day, and at the same time, there were some rumors in Luoyang City about people witnessing the dead resurrecting and demons running rampant.
A mysterious cult called "Longevity Sect" gradually surfaced...

As an agent of the mysterious intelligence agency "Tianming Department", the player needs to collect clues, investigate the cult organization, figure out the truth behind the demon crisis, and maintain the peace of Luoyang, the capital of the gods.