Ankoku Kishi Monogatari ~Yuusha wo Taosu Tameni Maou ni Shoukansaremashita~ - Chapter 16 - Intruder

The Hero of Light that saves the world.The Demon King that plunges the world of darkness.Which one will you be?“I'm both and the Great Sage, the Barbarian King, and everyone else while I'm at it!”

Ye Fan accidentally obtained a billion crystal technology system, and since then, he has become out of control.

Android: You do n’t even have a mobile phone system. I want to make it impossible for you all!
Ye Fan: Sorry, I researched it out, it seems to be more powerful than yours!
BMW Benz: Our engines are famous all over the world!
Ye Fan: Sorry, I do n’t have an engine, I only have magnetic levitation, and the speed is only a few times that of yours. Do n’t worry, take your time!
…
Enemy: Is he still human?
Who can stop this!

- Description from Qidian

They stole his future. Now, he’s rewriting reality.Ryan was at the top—champion of the world’s biggest VRMMO, but one wish changed everything.“I wish I could start over.”The Orb of Wishes granted it. Literally. Time snapped backward. The world unraveled. And Ryan woke up years in the past, holding his younger sisters close in a rotting apartment, broke and desperate.This time, he’s not starting from scratch.He remembers it all. Every hidden boss. Every bugged quest. Every game-breaking secret. While the world waits for the launch of Kingdom Forge, Ryan prepares to tear through it like a storm.But when he logs in, something glitches.His old character is locked. His class is reset. His power? Supposedly gone.Then the system flashes something strange:[Access Granted: Legacy Bank Synced][Warning: You were never meant to exist.]Ryan grins. He doesn’t need a strong class. He doesn’t need fair odds. He has what nobody else does—endgame knowledge in a beginner’s world, and an account holding gear, gold, and exploits that broke the game once before.He’s done being a pawn.This time, he’ll become the glitch the system can’t contain.

as a gamer, who knew the powers will be diversified in the world of Pirates and Navys?this is a story of a person who is thrown into the beautiful, but dangerous and horrendous world of One Piece, as the Holder of the System with the Job of a Gamer.