Age: 17 (StrikerS), 21 (ViVid)
Eye color: Light blue
Hair color: Violet
Handedness: Left
Intelligent Device: Blitz Caliber
Rank: S

Subaru's older sister. She belongs to Battalion 108 along with her father Major Genya Nakajima. When fighting, she uses the intelligent device Blitz Caliber which has the same dynamics as Subaru's Mach Caliber. She joined TSAB in order to further investigate the death of her mother.