The Marquis Mansion's Elite Class - Chapter 36

Upon entering the world of Genshin Impact, Lucas unexpectedly activates the “Villain Simulator,” forcing him to take on the role of a major antagonist in a simulated reality. His missions include:Bullying Keqing at schoolBlackmailing Shenhe into carrying out various tasksRaising an army of undead to destroy MondstadtAnd much more...To balance the evil acts committed in the simulation, Lucas must earn good karma by acting virtuously in the real world. However, he never imagined that one day, Shenhe, wielding a spear, would confront him in reality:“Lucas, you have committed countless evil deeds. Today, I will kill you to uphold justice!”Lucas: “...Wait, weren’t those just fake simulations?”

The whole world is subjected to a highly dangerous standardised exam called the Global University Entrance Examination. Answering questions by putting their lives at stake, they would live if they passed the test. Every month the exam will undergo reformation while, occasionally, it is random.

- Description from Novelupdates

Video game streamer Jing Yu, momentarily misstepped, and found himself in a strange professional gaming team.

Solo laner: Even if I have my eyes closed, asleep, dreaming, I can still kill you all!

Mid laner: Retreat? Not going to happen. Even if I only have one drop of blood left, I’m going to kill you all!

Marksman: Attack range advantage? I like to battle close-range! If you aren’t a coward then don’t run, let me kill you all!

Support: Support? As if! Wait until I switch to an AD build, then I’m going to kill you all!

Jing Yu: ……

Jing Yu: All of you, retreat! I’ll be the one to kill them!

- Description from Novelupdates

An alien race invaded the Earth on June 6, 2128. At the midst of this war, many nations allied with the alien threat and the war nearly wiped out the rebelling humans of the planet. At the edge of mankind's survival, the United Nations Army launched its forces to eliminate the immediate stellar threats that loomed over Earth.

General Seeker Carlean, commander and leader of the mission, risked and gave his life to destroy the immediate stellar threat. The battle was won though Earth lay in ruins. Perhaps mankind will live to see a few years of peace before the alien threat returns to wipe out their existence.

At the immediate aftermath of the stellar battle, the fallen Seeker Carlean awakens and finds himself at aged 17, living the peaceful life he lived 16 years before he died.

So begins a new game in the battle for humanity's survival.