One Piece: God of Space - Chapter 462 Military secrets leaked

--Warning: This story contains graphic scenes of violence and bloodshed. No one under 18 is allowed---To not get confused by the end chapters, read Fallen Chronicles first----0---Have you ever pondered the mechanisms behind the Demon King's power system? Wondered how they attain such strength at the game's outset, or why they seem to advance in levels more swiftly and efficiently than the heroes?Well... this is what our MC will discover very soon.---0---

Feng Yun was an ordinary young man who was unable to cultivate. One day, He got the inheritance of the Ancient Yang Demon Clan and a mysterious sword. With these he became a super genius and started his new journey from a small town to heaven, sweeping across the world, vying for the supreme existence.

With the memory of a Level 200, Tier 3 Mage. Lu Yang returned back to his life ten years ago. Destiny made a joke with him. He was betrayed and everything he worked for was taken away. He had to get it back.

The game’s money making methods, dungeon strategy, legendary quest, equipment source, secret blueprints, combat skills. He knows all. See how a reborn player with his brothers swept the country, burned the world and created the legend of The Fire God!

- Description from Novelupdates