Naruto: The Outsider's Resolve - Chapter 7.38 (256)

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

- Description from Novelupdates

Welcome to The Last Step – A Tale of Fate, Power, and the Unforgiven.In a world where magic defines one's worth, three souls walk a path toward an uncertain destiny—each bearing a power that can shape the fate of nations.Lucas, the God’s Chosen Sorcerer, wields divine magic that bends reality itself, blessed by forces beyond mortal comprehension. A shining beacon of hope—or a harbinger of destruction—his path is riddled with expectations he never asked for.Celia, the Queen of Curses, commands a power feared by even the strongest mages. She carries the weight of a past filled with whispers and condemnation, but where others see a curse, she sees the strength to carve her own future.Kaiser, the Unwanted Void, stands apart. Neither blessed nor cursed, he is the anomaly that should not exist. In a world that measures worth by magic, he is a shadow in the light—yet, the abyss within him holds something far greater than mere sorcery.Together, they are bound by fate yet divided by their own battles. As war brews and forgotten gods stir, the lines between hero and villain blur. In the end, their choices will decide more than just their own lives—they will determine the very foundation of their world.This is their journey. This is their Last Step.

Jacob Steve, an Old Man, died at 116 after living a whole life.

But Jacob always had a dark side, which he always suppressed and hid from others.
However, in the later years of his life, when death was inevitable, he understood there wasn't any point in having wealth, knowledge, or desires if you couldn't have a life to enjoy them.

He became obsessed with fabled immortality and devoted his reaming life to extending his fleeting lifespan, but just like any other failed.

However, he mysteriously got another chance at life and found a way that led to fabled immortality.
But he was also forewarned that the way led to it was filled with blood and darkness!

In the end, Jacob chose it anyway with no way of going back, and it was also the start of his suffering and his icky, brutal journey toward the 'Immortality' he wanted so badly!

Set on a giant, almost finished bridge between Sadogashima and Niigata. Abandoned by the government, the bridge, and the giant man-made floating island at the center, has become a city of criminals and societal drop-outs.

Set in the same world as Durarara, but 15-20 years later. There is almost no overlap between Etsusa Bridge and the other novels.