Start Practicing Taoism, and the Crispy College Student Slays Demons?

Ren Guanlan, a freshman in the Department of History, can see the "despair" of others after receiving a strange jade piece. Contaminated paintings on campus, strange shadows in the planetarium, debates about ghosts... Weird stories in modern cities have broken out one after another. In order to prevent the destruction of the world, he must go back to ancient times and personally cut off the first link of this causal cycle - and the person waiting for him at the starting point is his past self.