Shino Fujiyama dies from his obsession with weapons and is reborn as Yuri Mikael, the son of a disgraced noble family ruined by debt. In a world ruled by magic and politics, Yuri gains Creation Authority, a power that lets him create anything he understands—including modern weapons that should not exist here.

Refusing to be a hero, villain, or savior, Yuri chooses a different path: becoming a neutral arms dealer who sells to anyone with the money to pay. His business quickly draws the attention of nobles, mercenaries, kingdoms, and shadow organizations.

With Elvaria, a former noble turned assistant, and Ragna, a betrayed knight, Yuri’s influence quietly spreads—altering the balance of power in ways he never intended.

He takes no sides.
He seeks no glory.
He only wants profit.

Yet the world may soon learn that a single merchant can be far more dangerous than any hero or king.