|Also Known As||Mio Ninagi|
|Likes||Ohagi, inago no tsukudani|
|First Appearance||Season 2|
Nina lacks skill with firearms, instead preferring to use a slingshot.
Nina appears as a girl with blue eyes and brown hair tied into twintails via black ribbons. She typically wears a red and white dress with frilled white gloves.
Nina speaks with a heavy Kansai dialect.
Nina joins in Rose Haibara's final assault against Richard Maiougi. She, along with Charles Chatani, Zel, and Alan Aramaki, enters the fight in the graveyard after the Caleb Family is pinned down by Keith Kisaragi.