Typically, it's served to home dangerous or famous criminals. Except the officers, it's a very chilly place to live. Using half-hundred officers and long-distance survellience syetem to observe them, It's highly protected and difficult to escape. It is capable of holding 200 prisoners at maximum.

Built in the neo classicism architectural style with limestone found on the island, the complex mainly consists of a cellhouse, a recreation yard, some officer buildings, and a dock. It also has a graveyard for those who died with non-relative.

The island was colonized by the Sungear Republic to be used as an military fort. Dozen of military ships are park here. The fort was converted into prison decades later, and its first prisoner to test was the famous revolutionist and former king Samul Hecter, the man who turn the republic into 'kingdom' for a little while.

During the Great War, it's been used to capture prisoners of war. They're being forced to build an even more secure prison. More building and infrastructure has been added or improved overtime such as the electricty and internet.