My Life Can Be Infinitely Simulated - Chapter 422 - : 422 Earth Immortal?

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.

❗[Current Writing Contest-WebNovel Spirity Awards 2025 Fantas]❗Flain grew up in a futuristic world. When he was born his parents didn't want him because he didn't live up to their expectations and so he ended up very badly.Flain was employed as a slave. He was forced to mine radioactive iron deep in the mines. It was drilled into his head that he existed only to obey orders.Young Flain was obedient. He doubted some of it but knew nothing else. For years, he never saw a single ray of light; light was only spoken of among the others as a legend.The routine was the same: in the morning, he would take a nutrient tablet and water. Then he would mine all day, sleep eight hours, and repeat.Flain worked like this from childhood until he was ten years old. He even found a friend, but that friend died of radiation poisoning right in front of Flain. Flain couldn't stop mining. He kept mining with tears streaming down his face.Before bed, Flain cried. “I will become the strongest. I will kill you all, and you will become my slaves.”Flain stopped crying, stared blankly at the rocky ceiling, then looked ahead. A manic grin appeared on his face, one that would often adorn it from that moment on.At the age of ten, Flain was assigned to a military camp due to his endurance in the mines and his survival against radiation.In the camp, Flain was trained. The regime was much looser; he even had an hour of free time each day. However, Flain didn't make any more friends. Even during his free time, he trained with a smile. He would achieve his goal at any cost, even if it meant training himself to death.Experiments were conducted on Flain. He lost his hair, two long gray arms grew on his back, and a third red eye appeared. Flain became a mutant.Flain was then sent to war. He fought with sharp katabas. He performed quite well in the war, earning himself command of ten soldiers and becoming a small commander.But one day, everything changed.Flain then dies, is swallowed by darkness, and Flain refuses to die, thus appearing as a skeleton in a fantasy world.

This is a world where humans, demons and mysterious beasts coexist.

Humans cultivate mysterious qi. Demons cultivate corporeal bodies. Mysterious beasts cultivate soul perception.

A legend says that in the middle of an endless rainforest, there are extremely powerful existences; they are called demon kings.

Some demon kings have a tyrannical corporeal body, some are experts in illusions.
Some demon kings are proficient in magic, some can even move mountains.
Some demon kings are able to sense things thousands of miles away.

These demon kings rarely appear in the human world. Even if they emerge in the human world, they would reincarnate in human form; assimilating with mankind while seeking to breakthrough realms…

- Description from Novelupdates

Only a pure maiden can have a privilege to make contract with a spirit.

In Areishia Acadamy, maidens from noble family were gathered there, giving them an elite education to become a spirit contractor. A boy Kamito, by accident he peeped on a girl, Clair, who was taking a bath, and he even made a contract with spirit that she wanted.

Kamito was actually an irregular male spirit contractor, which should not exist.