Ib's personality varies depending on the player's choices, but she is shown as reticent, reserved, and vacantly unreadable. She appears to have an unusual mental immunity to most surreal events that would normally result in trauma, though she may simply be too young and naïve to identify when things are out of the ordinary.

However, she is truly very kind, compassionate, and emotional on the inside. When the cursed gallery's events start to ominously involve those who are significant to Ib .