Summary
Iona serves as the Mental Model for the Fog Ship I-401 submarine. Following the conclusion of a major conflict, she was placed into stasis and issued a directive to follow and obey Chigaya Gounzo. As one of the oldest Mental Models in existence, having spent approximately two years living among humans, she possesses extensive knowledge of human culture. Her ability to blend in with ordinary people is nearly perfect, provided she does not reveal her supernatural capabilities. Personality-wise, Iona is typically calm and quiet, offering valuable assistance to her crew and serving as a close friend to Gunzou. Although she generally avoids taking significant risks, she often acknowledges that Gunzou’s occasionally reckless plans are actually the most effective. She shares domestic responsibilities with her crewmates, such as cooking and cleaning. While she does not appear to have any specific hobbies, the manga indicates that she enjoys watching anime.
