Caina is a location in Persona 3 FES. It is the third door in the Abyss of Time. Caina is divided into three areas. The first section of Caina appears identical to the Yabbashah Block of Tartarus. The second section takes on the appearance of the first section of Malebolge. The final section appears the same as the initial area of Cocytus. On the 20th floor, there is a door into Akihiko Sanada's past.