Underworld

Underworld (冥府), also known as Hades in the PSP localisation, is the realm of the dead, another plane of existence that lies below the world in. It lies closest to the Sealed Land, found beneath the Cathedral and is where Octum is imprisoned.

Avin meets with the souls of Dominique, the previous Daughter of Durga and Mile during his time in this realm. It is later revealed that Eimelle is used to revive the God of Darkness from the depths of Underworld. After the defeat of Octum, a portal is opened by Durga and Avin descends to rescue the soul of Mile who is still trapped within this realm.