For ten long years, Tatsuya Fukushu lived through hell.

Every day, he was beaten. Every day, he was mocked. Every day, he was reminded that the world didn’t want someone like him. The cruelty of his classmates became routine—their fists, their words, their laughter. He endured it all in silence, believing that someday it would end. That someday, if he just kept going, peace would come.

But peace never came.

One day, something inside him shattered. And in a blind, terrifying moment of rage, he killed them—the three bullies who tormented him for a decade. His hands were stained. His heart, empty.

He thought he would finally die.
He wanted to die.

Instead, he woke up in another world.

A world of magic, kingdoms, and ancient prophecy. A world where people could fly, summon fire, and carve mountains with a sword. A world that felt too alive for someone as broken as him.

Tatsuya didn’t rejoice at the second chance. He hated it. Hated the sky, the air, the mana that pulsed through him. He wanted silence. He wanted peace. And most of all—he wanted to disappear.

But fate is rarely kind.

A strange knight named Paul found him, battered and aimless. He claimed there was a prophecy. That someone like Tatsuya had been foretold. Tatsuya didn’t believe a word of it. He didn’t trust him. Why should he?

But Paul didn’t ask him to believe. He simply trained him—day after day, sword in hand, never holding back. There were no kind words, only discipline. No promises, only purpose. And slowly, through blood and sweat, Tatsuya began to understand.

Trust wasn’t something that came from words. It came from action.
And maybe, just maybe…
He wasn’t alone anymore.

I don't even know where to start. I've tried to find the words, but they feel useless—like trying to catch smoke with bare hands. Still, I have to say them.


I left. I promised I wouldn't. I swore I would stay, that I would be there, and yet… I wasn't. You trusted me. You counted on me. And I failed. Not by accident. Not by circumstance. I failed because I chose—because I was weak, cowardly, and thought I could escape the weight of responsibility, even for a moment.


I don't expect you to forgive me. I don't even expect you to understand. I know what I am: someone who says things they can't keep, someone who leaves when staying is hardest, someone unworthy of the people who believe in him.


But I am sorry. Not the shallow kind of sorry that brushes past and forgets. This… this is the kind that claws at you from the inside, the kind that makes every heartbeat scream with your absence. I am sorry I broke my word. I am sorry I left you when I should have stayed. I am sorry for the trust I destroyed with nothing but my own selfishness.


I don't ask you to wait for me. I don't ask you to forgive me. I just… had to tell you the truth. I had to let you know that I know exactly what I did, and it haunts me. Every second. Every thought.


I can't undo it. I can't erase it. But if there's any way I can make even a fragment of it right, I will. Even if it's only by staying in the shadows, guarding you from afar, carrying the weight of my failure silently. That is all I can offer.


I am a fool, Luna. A fool who broke his promise. And I am endlessly, irrevocably sorry.


Chapter 55 - Tatsuya’s letter