I regressed and became the Sword Ice King - Chapter 394- Festival 125- Raid on a Rainy Night 64

❗[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.

Suddenly appearing in a different world, it looks like I got caught up in a Hero Summoning. And of course, I’m not the Hero, but it’s another guy……and while being very cautious and scared of the cliche of the cliche-like development, I was thrown into the maelstrom of war……or not.

The Demon Lord? It was defeated a thousand years ago. Hero? He’s just the main actor in a festival. Nobles? They’re kindly taking care of us. The Demon Race? They have good relationships with Humans. Wars? It’s already 800 years since the last one. Monsters? The Guild and Order of Knight are taking care of them. Return to Earth? It is eventually No-Risk.

What I’m planning after being caught up into this? I’m gonna enjoy the life in a different world as much as I want to, go on a cultural exchange and sightseeing, and after experiencing the festival that is only held once every ten years……I shall go home safely.

The other world was――at Peace.

A kind world where the three races, the Spirit World’s Magical Races, the Celestial World’s Divine Races, the Mortal World’s Human Races, they are kind neighbors to each other, with everyone living a peaceful and fulfilling life.

But although I wished to peacefully spend a year before my return, for some reason, the heavyweights of this world keeps gathering around me, and……

Kōdo Ikusei Senior High School, a leading prestigious school with state-of-the-art facilities where nearly 100% of students go on to university or find employment. The students there have the freedom to wear any hairstyle and bring any personal effects they desire. Kōdo Ikusei is a paradise-like school, but the truth is that only the most superior of students receive favorable treatment.

The protagonist Kiyotaka Ayanokōji is a student of D-class, which is where the school dumps its “inferior” students in order to ridicule them. For a certain reason, Kiyotaka was careless on his entrance examination, and was put in D-class. After meeting Suzune Horikita and Kikyō Kushida, two other students in his class, Kiyotaka’s situation begins to change.

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.