HaoridKen

Kaen Blaze, the strongest warrior in history, found himself at the forefront of Demon invasion. 

However, despite his devotion and strength, he was betrayed by his own people for peace!

Regressed to his 15-year self, he found himself in the past with a second chance, however, with a price to pay.

Now, with his previous life's experience, he'd strive for strength to not let the future repeat itself, destroy the people who betrayed him, conquer all the empires, build a unified nation that can resist the demon invasion this time.

With his secret organization, Sovereignty and his powerful subordinates, he'd grow and conquer everything in this life!

World's Strongest Duke Regresses To Conquer The World!!

Berij followed behind the butler, keeping her guard up.

She didn't know if it was safe for her and if she could trust the duke.

Though she had already calculated that the duke wouldn't harm her right now, not until he had tested her capabilities.

He had invested a lot in the research and he wasn't going to discard her just because she was dangerous.

Moreover, which of the subjects wasn't dangerous?

Almost all of them were more intelligent than an average man.

The butler knocked on a wooden door of a wooden house that was poorly constructed and was in the middle of nowhere.

"Coming!" A female voice came from behind the door.

The door opened inwards, revealing the figure of a middle-aged woman with white hair and red eyes similar to hers.

As soon as she opened the door, the butler stepped aside, letting the woman's gaze fall over Berij.

Berij Blaze - 5!