Kyoukai Senjou no Horizon - Volume 4C, Chapter 73: Roarer on the Starting Line

The worst and strongest villain.I became the narrow-eyed character Arsene Adel.“Revenge.”It sounded good.At least to the original owner of the body.But from my point of view, the goal is not revenge, but survival.I didn’t have the confidence to survive among humans, soㅡI went to the Demon Realm.Where I was headed,A school for demons that is said to be attended by the children of prestigious families in the demon world,……It was a school that terrorized the human world.

This is a very interesting thing. It is obviously dim and black, but it can emit a golden light, which makes people deeply fascinated by it…

- Description from novelbuddy

[Pre-Author's Note: MC develops as time passes, it starts out slow but surely]“The Apocalypse isn't just fit for anyone... Without Strength, you're just a tool waiting to be exploited, So hurry the fuck up and get some strength already,”The world ended in an instant.One moment, Simon, a 20-year-old game designer, was sitting at his desk, immersed in code.The next, the sky cracked open and monsters poured into the streets.Werewolves with claws sharp enough to slice through steel.Undead skeletons that marched with deadly purpose and Zombies that infected humans with the power of their bite.The gods had unleashed an apocalypse, and humanity was no longer at the top of the food chain.Simon ran, he survived... and then he was granted a power.|Congratulations You have been binded to the Vampire Overlord System|He was something else.A vampire overlord.Yet the Apocalpyse had only just begun...

Reincarnated into a land of cultivation, Yuan Zhou uses his Earth knowledge and assumptions to become a genius under the heavens for both business and cultivation. However, he walks the path of defiance, exceeding all rational cultivation bounds. His business ideas struggle against the stagnant culture that pervades the land, but the things he doesn't lack are his drive for immortality and power.