One Piece: Supreme Check-In System - Chapter 15: The Shadow That Follows

Cut through the road of life and death with one knife, and Hanren slaughtered all those who had hearts!

…

I don’t want to be a knife, I want to be a knife bearer.

I don’t want to be a pawn, I want to be a chess player.

an ordinary person.

But he wants to live out himself in this world.

The unknown road ahead is slim, and the future is unknown; just walking step by step, before you know it, it is already a journey, and there is no world.

The thorny road, the red dust is far away; the clever move, the step is high;

Flatten the sea, turn over the rivers and lakes; clear the blue sky, hold the sword of heaven.

- Description from novelbuddy

She is the twenty-fourth century’s strongest immortal cultivator, but transferred into a world of magic where demons roamed rampant; a punching bag tyrannized and ostracized by her clan on one side while the scum of a man that is her fiancé humiliated, trampled her on the other side…

Waking up inside the ruins of an orphanage, Alexander finds himself chained and sold to slavery.

A modern metallurgist, trapped in ancient times, watch as he tries to play with the cards fate dealt him.

He will make plate armor, invent paper, build roads, teach governance and many more, as he tries to carve a place for himself.

But how can such things not attract jealous eyes?

The naval superpower- Cantagena,

The unstoppable army of- Exolas,

The superpower of the east- Adhania,

The mercantile confederation- Sybarsis,

The religious fanatics- Iyizarid,

And the ever-present- Barbarians of the Barren Forrest,

All want something from each other.

In this ocean of sharks, follow a small carp as it struggles to leap through the dragon gate and establish a dynasty to outlast them all.

When a glorious old civilization was toppled overnight, a strange purple moon rose and thus began the Purple Moon Era.

Damn it! What kind of ecosystem was this? The evolution was messy. Even rabbit bites and plants were not to be messed with. How can one survive all this? Evolve into a Purple Moon Warrior? What did this have to do with the Purple Moon?

What kind of map was this? The Safety Sector? The Floating Domain? The Darkness Port? The Storm Voyage? The True Capital?

The Horror Lullaby List? The resurrection of the Underground Tribe and the prospering Underground City? The Chaos Black Market that suffused the world? The Bloody Road?

More importantly, one could end up in a bloody slaughter when dreaming and enter the Dream Domain? Fine, this damned era!

- Description from Novelupdates