One Piece: Invincible from Hachinosu

He transmigrated to the era of Rocks and became Whitebeard's younger brother from the start.

A useless weakling among a group of monsters?

“Whitebeard, what can your brother do?”

“He doesn't look intimidating at all.”

“No lineage, no Haki, no abilities. He's just an ordinary person.”

“He'll die in the Rocks Pirates in no time. I'll give him a proper burial.”

Wang Qi was mocked by monsters like the Golden Lion and Big Mom.

Then came a sudden chime...

An ordinary person? No!

He was the “Calamity” of the Rocks Pirates!