The Extra: Crown of Eternity.

Rio only wanted to see how the story ended. Instead, he woke up inside it. Not as the protagonist, not even as a supporting character—but as someone who barely existed in the narrative. An extra with no importance, no future, and no place in the story’s direction. At least, that’s how it was supposed to be. Now in the body of Rio Valen, a disgraced noble exiled from his own house, he finds himself in a region the original story barely touched—one driven as much by advanced technology as it is by mana. And buried beneath it, something far worse. The facility he wakes up in shouldn’t exist. The experiments conducted there shouldn’t have succeeded. And whatever was placed inside him was never meant to survive. As fragments of memory return—both his own and the life he inherited—Rio begins to understand the situation he’s in. The world still follows its original course. The key figures are still moving toward the same future. But his existence doesn’t fit anywhere within it. Even so, people begin to notice him. Not because of who he is—but because of something they can’t quite explain. A presence. A flaw. Or something far more dangerous. Some approach out of curiosity. Others, for reasons he doesn’t understand. And a few, simply because staying away isn’t an option. With no role to follow and no clear path ahead, Rio is left with a simple choice: Stay invisible and survive. Or step into a story that was never meant to include him. Because in a world that already has its main character— an extra that shouldn’t exist might be the only thing that can change it.