Nightfall - Chapter 10: Bodyguards, as Hard as Rocks

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

“I’m sure we’ve all had that weird kid in our class.”“You know, the one everyone avoids like the plague.”“The moron who always comes to school with messy black hair, torn-up clothes, and so many bruises on their body it looks like they were mauled by a bear.”“I know that kid well—”“Because I’m him.”[DING!][YOU HAVE AWAKENED YOUR BLACKSMITH SYSTEM]“Blacksmith system? What the fuck is that?”It’s the power to forge.The power to create weapons that can split the heavens themselves.Weapons that can challenge gods, rewrite fate, and reduce galaxies to dust.Weapons that can cut through time and space.With the Blacksmith System… you have the power of creation.Do you accept?[Y/N]

Because of boredom, Xu Jinyi entered a game. In this game called “Different Worlds”, he needed to play some cannon fodder or villain to live a happy new life.

Xu Jinyi worked hard to finish the game, and finally realized that this game was actually a scam created by Zhao Chengli specifically for him.

- Description from Novelupdates

Crossing to One Piece world, he became Roger’s younger brother.