Futaba, Aoi

双葉アオイ

Aoi is a teenage girl who previously served as a top agent for the Immigration Bureau of Japan before helping to save Eris. When the Bureau ordered her to "dispose" of Eris and Kio, she chose to save Eris instead, fearing she would lose Kio—the only person who made her feel like an ordinary girl. She possesses an ability called "Aport," which allows her to teleport objects (usually guns) to herself from within a 50-meter radius. Due to this bizarre power, her parents abandoned her at a young age, leaving her to grow up on what she describes as "the other side of society."
Her feelings for Kio are obvious to everyone except Kio himself and Eris. However, she lacks the confidence to successfully pursue him, largely due to her bloody past and her chest size. Her greatest fear is that Kio might reject her if he ever learned the full details of her history with the Immigration Bureau.

Spoiler

Her main hobby is collecting old and obscure movies, which is also how she ended up meeting Kio.