One Piece: Unreal Adventure - Chapter 15: Out cold

The end of the world has come, the world order is in chaos, and human morality has declined.Li Yu, a cold man, was reborn and won a 30-million bonus at the start of his new life. He built a god-level base and hoarded resources.While others were struggling on the brink of starvation to death, Li Yu was enjoying himself on the rooftop, having a barbecue and drinking beer.

A great demon king who came from another world to conquer Earth. To save the Earth, Li Luyou could only first take care of this great demon king… a little girl proclaiming herself Her Imperial Princess.

- Description from Novelupdates

Yin Xu, a super genius of cultivating demonic arts in history. However, once his failed to get through the tribulation and became a mortal, even a reputed good-for-nothing at last.So what if he was a tr*sh, he can still cultivate the demonic arts!So what if he couldn’t ascend, he can still be the lord above everyone else, but excepting someone!As to the man…Yin Xu: “Next time, I must ride on you!”Teng Yu: “Good! If you don’t want the Yang energy to replenish your Yin energy.”Yin Xu: “Oh! Forget it. Cultivating my demonic arts is the most important!!!”

I am the sword.

Killing a man amidst a thousand miles, no one dares take ten steps.
Killing a man amidst a thousand miles, no one can take ten steps.
Killing a man amidst a thousand miles, ten steps? Not possible!

I am the sword, the sword is me,
On the path towards heaven, each shall wield their own.

- Description from Novelupdates