Ava's mind is a series of tightly packed and organized left and right drawers, in which she keeps everything about herself hidden. For example, her thoughts, dreams, feelings, and aggression. Outside and around these drawers is a dusty and dark nothingness until Wrathia makes herself at home. It is first seen on page 0247.
Ava's mind is very dark and ominous. It is filled with drawers and childhood items from Ava's past along with some luxury items which Wrathia herself has used to redecorate. Lava is frequently seen dripping from the drawers and crevices, this lava along with the few candles seen about is the only light source in Ava's mind as of now. The drawers in Ava's mind hold her thoughts, memories, and feelings. These drawers bubble and react to her mood, as seen when Ava violently yells at Wrathia.
Ava enters her mind shortly after the pact is made, and it is revealed that with this pact, she and Wrathia now share a mind together.