Becoming an Apostle, Starting with One Piece

Becoming an Apostle, Starting in One Piece

Kahn transmigrated to the world of One Piece and received a Class Change System. He had hoped to become a legendary Sword God, but unexpectedly wound up as a Battle Mage.

He once ventured into an abyss where the roars of giant beasts could be heard. He once witnessed the spectacular sight of the Nine Dragons pulling a coffin away, and he once discussed the Dao with a Sage.

This is the story of an ordinary person who journeyed through countless worlds and became the strongest Apostle.

This is an infinite-worlds novel: One Piece, Naruto???