Also known as: 冬坂五百里
A playable protagonist and pilot of Sentinel No. 15 in Juusan Kihei Bouei Ken. A student at Sakura High School in the 1980s who has been experiencing vivid and strange daydreams as of late. She is friends with Kurabe Juurou, Amiguchi Shuu, Kisaragi Tomi and Sawatari Miwako. Has taken romantic interest in Sekigahara Ei.
Wears Sakura High's female uniform, a standard Serafuku. Adorned with hair ornaments in the shape of flowers. Has long, Grey Hair and Brown Eyes.