The Cursed Prince's Strange Bride - Chapter 113 Sleepover

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.

What happens when you survive seven hellish years on an alien planet in the ultimate battle of the strongest in the universe—as a human?What happens when you give everything you have and more to defeat the final boss in a battle to the death… only to wake up the next second, back at day one?Going through it all over again?But something is wrong.The game in his hands isn’t Nyxfall 6: Dark End, the world he spent over seven years surviving. It’s Nyxfall 7: The Veilbreakers—the next installment.He won? So now he’s been given another game to play?And he’s not alone. There are others like him in every alien civilization. This time, it’s not just survival—it’s about who can lead their people best.That is… if they even care about their people at all.Why bother leading at all? With everything they have learned, why not exploit the system, amass unimaginable wealth, and live like a king in a game that pays in real money?

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.