Jail Island

game

Jewel Island is the main setting of the game One Piece: World Seeker. It is under the control of the Marines.

Geography
Jewel Island is a lush, green island with multiple elevated surfaces and precious stone formations. It is stated to be rich in natural resources.

Jail Island
Jail Island is a large prison tower being built on the highest part of Jewel Island. It is capable of lifting off the ground and hovering in the air.

Citizens
The citizens of Jail Island are split into two factions: "Pro-Marine" residents who accept Marine control and their modernization projects, and "Anti-Marine" residents who prefer tradition.

Past
Sometime in the past, a war occurred over the use of resources on the island. Eventually, the Marines intervened and rebuilt the island, establishing a large presence there while modernizing the residents' way of life. This led to a split forming between those who supported the Marines and those who did not.