PKZ: ITISLD-V-560524
Relatives:
Erika Itou (Twin Sister)
Anja Itou (Mother)
Lilith Itou
Ariane Yeong (Friend)

Affiliation: AEON
Occupation: Shop Assistant
Biographical information:
Date of birth: 14S 52P c (Rotfront calendar)
Place of birth: Vineta
Species: Gestalt (human) 
Gender: Female
Eye color: Green

Isolde "Isa" Itou is one of the main characters in SIGNALIS. She is referred to as "Isa" throughout the game. Just obsessive one...