Regression Is Too Much - Chapter 4: Regressor is too weak ()

One day every human on the world suddenly receives a mail claiming to enact the World Salvation Project. Half in doubt Kurosaki Shion, a diligent university student and loner, follows the mail’s instructions, becoming one of a million Demon Kings governing his very own Domain in the new world.

*** This is a post-apocalyptic story containing many fantasy elements. It is a somewhat dark tale following Shion as he grows while aiming for the unification of the all too sudden new world. It has many game-elements bolstered by strategical thinking while at the same time providing funny moments and romantic encounters.

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.

Roy’s life was nothing special. The only thing commendable was the last few moments when he saved a mother and her child from a drunk driver.
…
It’s really an egg! Damn it, what kind of monster have I become? Did I fall into Hell instead of making it to Heaven??
Join Roy as he ventures through various worlds with the Custom Made Demon King System—a system that allows Roy to draw anything he can imagine and create it through exchanging souls!

On the day Zhou Tian took up the ID of “Yuzhou” and joined the YGG team, the entire professional gaming society of League of Legends was whipped into a frenzy. Nobody foresaw that the number one Kindred player on the Korean server, “Yuzhou Mei” was really a girl, and was even playing as a professional gamer. And so, a few days later, during an interview with the YGG team after the competition, the interviewer asked their ADC, Xie Yi, to evaluate their new teammate.

Xie Yi, after seriously thinking for a while: “She’s a bit fierce.”

Xie Yi, later: “As the name suggests, the new jungler is the sweetest in the universe.”

Note: Yuzhou = Universe

- Description from Novelupdates