G-4
CharacterG-4 is a Marine installation positioned somewhere along the Grand Line that also functions as a holding facility for captured criminals. It appears late in the story during the Final Saga, where it serves as the cell block for a group of pirate impostors.
Overview
G-4 ranks among the numbered Marine branches scattered across the Grand Line. Beyond its military duties, the site doubles as a prison, locking away captives the Navy has rounded up. Its precise coordinates are never pinned down in the narrative, only that it sits somewhere within the perilous waters the World Government patrols.
Role
The base operates under the authority of the Marines, making it one of many outposts the organization maintains to project force and detain wanted figures. Its dual purpose as both a garrison and a jail places it among the network of facilities the Navy uses to hold prisoners across the seas.
Notable Members
Around the moment Vegapunk broadcast his warning to the planet about the hidden Void Century, the group masquerading as the Kid Pirates, in reality a band of fake Straw Hats, was being held inside G-4's cells. Their confinement there marks the base's sole notable appearance in the events of the Egghead Arc.
Frequently Asked Questions
What is G4 One Piece?
G-4 is a Marine installation on the Grand Line that also doubles as a prison for captured criminals, appearing during the Final Saga's Egghead Arc.
Where is G-4 located?
G-4's exact coordinates are never specified in the story, only that it lies somewhere along the Grand Line within the waters the World Government patrols.
What is G-4 used for besides being a Marine base?
Beyond its military duties, G-4 also functions as a prison that holds captives the Navy has rounded up.
Who was held at G-4?
A group of impostors posing as the Kid Pirates, actually fake Straw Hats, was held inside G-4's cells around the time Vegapunk broadcast his warning about the Void Century.
When did G-4 first appear in One Piece?
G-4 first appeared in Chapter 1115 of the manga and Episode 1148 of the anime.
Sources & Information
Looking for more on G-4? The One Piece Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Anime based on the One Piece anime series, manga, and official materials. Episode and chapter references are cited where applicable.
Rights holders
- Created byEiichiro Oda
- Published byShueisha
- Animated byToei Animation
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