Rebirth in One Piece as Deputy Captain - Chapter 379

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

- Description from novelupdates

“There are no heroes. In life, the monsters win.”

...

In 2106, [Mayhem Online], a fully immersive VRMMO game, was released. Soon, it dominated the world's economy when people could exchange the in-game currency with real-life currency and vice versa.

In the year 2107, Flynn Grey, a 22-year-old college dropout with an ambiguous history, joined in the fray of billions of people that had already started playing [Mayhem]. Hoping to uncover the game's secret and earn a fortune, he spent months on adventures without fruitful results.

For better or worse, Shura, Flynn's in-game character, ends up in a great Wyvern's den, acquiring a hidden class and a monstrous race. Join him as he defeats his past and paves his way into becoming a true legend in both worlds.

Heaven favors the strong and wealthy.Hex realized that the day he was thrown out of the cloister and into the slums. He vowed to become the baron and show what being strong meant.To forge his own destiny, Hex scavenged the mountains, braving the cold solitude with a smile. At last, one day, he gained his chance on the verge of life and death. Even then, society and Fate tried to interfere. Faced with death, his Will didn’t waver and he gritted through, forcing his Heart to awaken. The Stone Heart in his chest defied his destiny and helped him write his own.Emboldened by his Heart of Stone, he walked the path to his dreams. His dreams, however, threatened to put him in the middle of the crossfire between Powers that could destroy Earth and Sky. Hex couldn’t allow his dreams to shatter. So, he sought to destroy all those who threatened his dreams.Follow a young man on his quest to fulfill his dreams, even if it meant to destroy Heaven and Earth.

Eight Thousand Years after the Glassing of Earth, Terran Descent Humanity has largely become a post-scarcity society based on consent and enjoying life. With the discovery of another ancient race beyond the “Great Gulf”, events and history collide to draw the Terran Confederacy into war against a hundred million year old empire that has always won and believes it always will. With allies and enemies of multiple species, the Orion Galactic Arm Spur will be wracked by warfare the likes of which have not been seen. Cracked, harried, wounded, and damaged, Terran Descent Humanity willfully throws itself against the universe itself. “The universe hates you and will take away everything you love, laughing while it does so.” - Terran belief.