The SIXTH level of the terrifying prison located in the Black Star Village, this detention place is the most fearsome of all and many people who thought of commiting crimes have been quickly brainwashed not to do so by their own mind because of the fear of the great Black Star Detention Unit.
Here prisoners are trapped unable to use chakra like the rest of the levels of the detention unit using black star metal chains enchanted with chakra-supressing seals and chakra-supressing mechanism brought from the Snow Village from the far North.
Eternal Hell (無限地獄, Mugen Jigoku?) is the lowest level of the Black Star Detention Unit. It is where prisoners who are insanely powerful, have caused crimes extremely atrocious, or whose mere existences have become a major threat to the World itself are kept. The prisoners on this level have been given either the death penalty or a life sentence. They are basically "erased" from history.
Ace was kept here on death row, awaiting his execution. Because most people dismiss Level 6 as just a rumor (until its actual discovery). Though the prisoners on this floor are either jailed for the rest of their lives or until their execution day arrives, .Near them are various other legendary ninjas who hold deep grudges against Black Star, some of which are several imprisoned Giants.
NO ESCAPE