From her experience over time, IF is a knowledgeable girl, but she can sometimes be overconfident over what she knows. She is headstrong and always plans and finishes things her way. Because of this, she does not like doing things that does not benefit her or any of her group's main objectives. Nevertheless, she's dragged along things that she does not want to do. Despite being almost always serious, IF can be sarcastic over some things. As of VII, it is revealed that IF has a strong emotional dependency on the cellphone's she keeps close, when Neptune takes her phone from her she becomes desperate to get it back regressing from her strong and independent demeanor to one more cutesy and innocent who was whining to get her cellphone back. She returns to normal almost immediately once she gets it back however.

IF (a member of The Guild in Planeptune) waves at you with a genuine smile on her face, saying:

"I'm IF. A gust of beautiful wind that blows through Gamindustri!"