But between all the lore—Paradise, the New World, the Calm Belts ... That's the Red Line! — Nami in chapter 22 of One Piece Interestingly, the Red Line isn’t just one piece of land ...

One Piece chapter 156 mentions land formed by volcanic activity. If this world’s Ring of Fire truly exists, it could have built the Red Line over time. However, the idea goes further than that.

One Piece has been riding high recently, thanks to the anime making a comeback and the final saga throwing major curveballs ...