Mitou Shoukan://Blood-Sign - Volume 5, Opening X-02 - Peel Back the Outer Layer to Reveal Another

When Zen was just five, his kingdom fell in flames. His people vanished into dust. His parents - his world - were taken by death. Left behind with nothing but silence, the young prince was forgotten by history. But his story… was only just beginning.He walks alone at first. Weak. Broken. Powerless.But the fire in his heart never died.He seeks strength enough to tear through the heavens, enough to break the chains of fate itself. Not just to see the faces of his lost parents once more… but to take revenge on the ones who destroyed everything.But can strength truly reach beyond death?… or will it only turn him into something worse?This is not just the story of a fallen prince.This is the legend of The One Who Walks Beyond the End.

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

The tale of Oliver.
An orphan boy from a Mine, in 19th century Europe, filled with Magic.

Sian Lee, the strongest person under the heavens in old china, was reborn as a very overweight woman.