Dragon Monarch System - Chapter 771:- The City of Beginning

‘Seoul 2056’ is set in a world that has fallen into chaos due to the spread of mutant viruses and the rebellion of androids. A hidden scenario was opened when all the endings were collected for the first time in the world.In a world where everyone’s body has been modified into a machine, and all kinds of monsters and hunters run wild, the only privilege given is [pure organism] , which is impossible to modify. In the apocalyptic cyberpunk world that has become reality, a veteran’s hellish survival story of being possessed by an F-class hunter!

Li Yubing and Tang Xue were deskmates throughout the whole six years of primary school. After being plagued by Tang Xue for the entirety of this period, Li Yubing saw his chance and broke free with his secondary school selection. With no contact for yet another six years, who knew that Tang Xue and Li Yubing would one day meet again in university…

- Description from Novelupdates

Demons in Academy of Light are described as vile, dark, cruel, evil, impure, and a whole lot of other things. At least, that’s how they’re portrayed in the game—a sacred land where demons and dark energies aren’t supposed to exist. That’s how it was supposed to be... So what the hell am I supposed to do now? Thanks to my rotten luck, my soul ended up possessing the lowest-ranking demon, the one who dies at the very beginning of the story... I’m screwed! I have no other options left... If I want to survive, I have to kill the protagonist.

Haruma Kazuki is a cursed (or maybe just deeply unfortunate) high school student whose lewd, panicked, or absurd thoughts literally manifest in reality — especially when he tries not to think about them. The more he denies or avoids feelings, the more chaotic and trope-heavy the consequences.