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Intro. The world of One Piece is a vast, ocean-dominated planet defined by boundless freedom and perilous adventure. Civilization clusters on scattered islands and two colossal landmasses: the encircling Red Line continent and the band-like Grand Line sea, perpendicular to it. The Grand Line, split into the chaotic "Paradise" and the treacherous "New World", is the ultimate pirate proving ground, governed by bizarre weather, magnetic anomalies, and monstrous powers. Surrounding the Grand Line and the Red Line are the relatively calmer Four Blues (North, East, West, South), separated by Sea King-infested Calm Belts

One piece world (RPG)

@Ronit