One Piece: King of the World - Chapter 419: Is Admiral Gion Also a Money Pit?

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

Su Xing traveled through ten years in time and secretly checked in for ten years at Tianquan Peak. He thought he could continue to develop, but he suddenly got three junior sisters.

Rein Aster was just a herbalist farmer from a border village.A nobody. A background NPC in a story filled with prophecy and divine warfare.But by chance—or fate—he saves one of the 7 Demon Lords during a catastrophic war event. Instead of killing him, she falls for him.Obsessively. Violently. Eternally.And then… so do the others.Each Demon Lord tries to trap Rein as her personal lover/pet/priest/husband/god, building dungeons, illusion palaces, soul prisons—but Rein keeps escaping. Quietly. Cleverly. Never fully rejecting them—but never submitting, either.Why?Because Rein realizes something:The gods are worse than demons.The heroes are tyrants in shining armor.The world is collapsing—and he’s the only one they all listen to.So he hatches a plan:Use the Demon Lords’ love to take over the world.Pit them against the heroes. Unleash them on the gods. Make them fight for him. Make them kill for him. Then tame them all.Not as a king.Not as a savior.But as the lover they would burn the world for.__________The yanderes here are darker than what you might be used to.You have been warnedThe entire novel has a dark feel. Atleast read the first two minor arcs

Beside the coast, a hundred-meter star gate is overflowing with light.

Outside the star gate, the army made of steel can’t see the edge at a glance.

On the sky, a fighter jet flew across the sky, interweaving the iron curtain.

In the distant ocean, aircraft carriers, destroyers, and frigates are all over the sea, ready to go.

All the muzzles were aimed at a figure walking out of the star gate.

“I order you to withdraw in the name of the Federal Command, otherwise, all-out war awaits you.”

“war?”

Ancient and Jinlai took a step forward, and his body rose against the wind. In an instant, he grew from less than two meters to a Chaos Demon God thousands of meters high. The brilliance of a white dwarf radiated from him, and his own gravity alone caused it to be caused by thousands of miles around. Lightning and thunder, tsunami tides.

He bows his head…

Looking at a toy-like war weapon.

Reaching out, a hydrogen bomb fell into his hand.

The electron degenerate star nucleus in the body releases helium, and the helium element expands. The terrifying high temperature instantly causes the isotopic elements of hydrogen to aggregate deuterium and tritium, and the energy explodes. The sudden white brilliance is like lighting a sun on the sea.

Before waiting for the sun’s energy to be released, he closed his hands together, and the blazing whiteness mixed with hundreds of millions of high temperatures was compressed and sealed in the palm of his hand, escaping less than half of it.

“I think you should choose peace.”

- Description from novelbuddy