Doupo: Life Simulator System - Chapter 10: Admission in progress

[You have awakened with the Lifespan Extraction System!][Extract Lifespan, advance your Cultivation and Cultivation Talent, amass an unstoppable Army of Shadow Beasts, and ascend to the Pinnacle of the World of Immortal Cultivation!]In the Super-Continent of Legaria, a Godlike youngling was born… and abandoned.Scorned and hated by all for merely existing, Zar struggled day in and day out, just trying to survive to see the next dawn. In a world of Intelligent Beasts, he, a Half-Beast, Half-Human—a species alien to the inhabitants of Legaria—had no one to rely on.By some miracle, he managed to make it in one piece to his 15th birthday. A day… which changed everything for him.*Ding!*[Are you ready to become the Ultimate Immortal Beast Tamer?]Fate shall be rewritten!Zar—a lone Godling—shall rise up and make even the most arrogant of God Beasts and Immortal Cultivators relinquish their strength to him!

I was reincarnated into the world of Academy City.Since things turned out this way, I decided to aim for a decent job and live a happy life.As long as I catch the villains who will become the Great Villain, there shouldn’t be any problems.“Greetings. I am Ahn Woo-jin, a second-year student and the 45th Disciplinary Committee Leader this year.”And so, I became the Disciplinary Committee Leader, leading the top-ranked enforcement squad.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

The Aliens descended with hostility.In the face of the Alien invasion, humans were as weak as ants.So this was the apocalypse, the true apocalypse.But where there was invasion, there was resistance.For some people, this wasn't the end times, it was war.So this was war.The real war!