Slay the Gods: I, Li Yifei, Am a Divine Beast Agent!

[Slay the Gods fan fiction + System + power fantasy + brisk plot]

Li Yifei transmigrates from the future. This time, right from the start, he awakens the memories of the Nanda Snake Demon and merges with them.

This time, he will join the Night's Watch openly and honorably. He will change his former fate and no longer be just a caregiver at Lin Qiye's mental hospital!

(Another timeline from the original story. Lovecraftian corruption has tainted some of the Great Xia gods, and, exploiting the greed of certain people, has infiltrated the upper echelons of Great Xia. The pacing may be a little slower and the plot more complex, and some characters' personalities may differ from the original.)