After a case of mistaken identity during an exorcism, Ma Xiaoxiao knocked a brick down a well and hit an amnesiac man.
He claimed that the last time he woke up had been in the sixth year of the Republic of China.
When she returned to the well, she discovered the vengeful spirit of General Li Mu of the Warring States period, as well as the secret of the True Scripture of the Great Way of the Ephemeral.
As she pieced things together, she discovered that this immortal seemed to come from an even more ancient era.
The Kikiku sect was gathering and refining resentful spirits and generals like Li Mu, hoping to destroy China's dragon veins.
A war of protection, centered on a sacrifice for immortality, began.