The female commander of Urisu base. She used to be active as an ace pilot, but now she has withdrawn from the battlefront and has taken the position of leading the base as a commander. She is also another Kildren.

Regarding Yuuichi, she starts out with a cold attitude towards him at first, but gradually begins to show special affection for him. Her periodically uncontrollable tide of emotions are linked to Yuuichi's lost memories. "She gave birth to a child." "She murdered Yuuichi's predecessor." There are many rumors flying around about Suito, but her comrades refuse to talk much about her past.