The Red Line
The Red Line is a massive wall of rock in the One Piece manga that stretches high into the sky and splits the seas into four regions.
First mentionedCh. 22, p. 1345 chapters reference it
Known from canon
5 factsEast Blue is the weakest of the four seas separated by Red Line and Grand Line.
Red Line is a massive wall of rock that stretches high into the sky.
The New World is described as the sea beyond the Red Line.
Fisher Tiger climbed the Red Line alone to free slaves in Mariejoa.
The Red Line splits the seas into four regions.
Still unknown
4 questionsWhat hidden structures exist inside the Red Line?
How does the Red Line connect to the Poneglyphs?
What is the origin of the Red Line's unique rock composition?
Are there undiscovered islands atop the Red Line?
Best explanation right now
All theoriesNo theory on file explains The Red Line yet.
Timeline of mentions
6 key chapters- First mentionCh. 22, p. 13
- Mihawk names four seasCh. 51, p. 3
- Crew sees Red LineCh. 101, p. 12
- Nami names New WorldCh. 433, p. 7
- Hancock names Fisher TigerCh. 521, p. 14
- The Red Line splits the seasCh. 908, p. 10