My name is Meng Nan, an ordinary high school teacher.
It wasn't until that night that I realized there was more to this world than just humans.
The demon is watching in the dark, the heroic spirit awakens in my body, and the responsibility of protection falls on my shoulders.
I want to find the students who were demonized,
To face the ferocious demon clan,
To prevent a coming war.
Finally, on the ruins of humans and demons, I became the guardian of the world.
Purpose: Responsibility and protection