In Class 1-A of Tokyo Advanced Nurturing High School, there was a student who became the talk of the school from the very first day. He was effortlessly cool, even doing his cleaning duties, eating lunch, and standing as punishment in the hallway. Every move he made exuded—Cool! Cooler! Coolest! This student, who embodied coolness and elegance to the extreme, was named—Sakamoto. He casually pushed up his glasses: "I am Sakamoto. What brings you here?"

After being punched awake, Morin found himself a prisoner of war. He'd imagined a world reminiscent of the eve of World War I, but the reality was far worse. And why, even a soldier of the Empire, was he an ally of the International Brigade volunteers? The tin-canned assault troopers wielding swords and shields, the armored knights powered by a hybrid of diesel and magic, and the accompanying mages...all of this told Morin that there was something wrong with this world, and it was a big one. But his priority now was how to survive this war, the one that was supposed to "end all wars." Elements of this book: a magical retelling of World War I, the true man's role as a tyrant, diesel armored knights, airship boarding...

As a transmigrator — and a high demon personally named by the Demon King —

Agusheed rejected the title of one of the "Seven Sages of Ruin" and instead chose to embark on a journey to reclaim the emotions he had lost.

A thousand years ago, he once traveled back and forth to the “Heavenly Realm” alongside the most powerful human Archmage, Flamme.

He also dueled with the “Corrupt Sage” Qual, seeking not victory, but validation of their respective magical philosophies.

Yet, no matter how hard he tried, he could not rediscover the feelings he once had as a human.

………………

Flamme: Agusheed, I imagine your life from now on will be longer than I could ever fathom…

Agusheed: Perhaps.

Flamme: Agusheed, there’s something I want to tell you… I’ve fallen for someone.

Agusheed: Who is it?

Flamme: A man who doesn’t understand feelings at all…

Agusheed: What do you mean?

50 years later

Agusheed: No… that can’t be right.

A demon unable to comprehend emotion finally came to understand what “love” meant —

But by then, she was already gone.

A thousand years later, on Flamme’s death anniversary, Agusheed sat quietly at her tombstone in remembrance.

It was then that one of the “Seven Sages of Ruin,” Aura the Beheaded, came looking for him—