Judecca is a location in Persona 3 FES. It is the sixth door in the Abyss of Time. For the first eight floors, Judecca has blue walls and metallic floors. The last seven floors have purple walls with giant gemstones set in. At the 25th floor, there is a door into Yukari Takeba's past.
In Inferno, the first cantica of Dante's Divine Comedy, Cocytus is the ninth and lowest circle of Hell and is divided into four descending "rounds," or sections.Judecca is the fourth of those sections, named after Judas Iscariot. This is the section where traitors to masters and benefactors are frozen forever in the waters of the lake that is Cocytus.