Perfect Secret Love: The Bad New Wife is a Little Sweet - Chapter 11: Did I scare all of you?

She was reborn in the 1970s, when there were no mobile phones or TVs, people lived in poverty and marriages were arranged by families. He, the wealthy and powerful head of the regiment, who governed the local army, helped her join the army so that her family would no longer be bullied and could live a good life. And Suddenly, he proposed marraiage to her...

“I will look up into the sky on this wasteland and fight for our civilization!”Xu Mo was accidentally transmigrated to an apocalyptic world. He quickly learned that his parents had just passed away and he was being hunted.Not only that, but his only uncle was trying to take away the money his parents had left for him.In order to protect himself and his younger sister, he steeled his heart and decided to walk down the dangerous Path of Evolution.“Energy, magnetic field, dark matter, radiation… All of these are now known as Source Power!”By absorbing the Source Power, one could evolve their body, activate uncharted brainpower, awaken abilities, and even create weapons.One could even travel through the vast universe if they got powerful enough.For Xu Mo, who had just started to absorb Source Power, he started to realize that he could see things that others could not.

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

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.