Birthday: December 1, 1983

Horoscope: Sagittarius

Blood type: A

Height: 175cm

Bust, Waist, Hip size: 86cm, 58cm, 84cm

Room: #302

She objects to having him as the manager of their dormitory. And she lets Keitaro know it with the help of her sword. Despite being strong and having good swordsmanship skill, she is scared of turtles. She has a short fuse for males. The matter is that she hates all men since her older sister found a lover when Motoko's still a child leaves her and the way of the sword. She always warns Su and Shinobu not to get near Keitaro for fear of what he may or may not do. She carries her sword with her at all times. She practices the art of Shinmei Ryuu. She uses the power of ki (soul; will power). She seems to be into the old traditions from her speech pattern, to volunteering at the local Shinto shrine, to knowing kendo and archery.

The only people that have managed to stop her sword strikes were Keitaro and Tama-Chan on one occasion each, and Seta, who is the only person that can defeat her.

Attack Techniques
- Ougi Zangan Ken
- Zantetsusen
- Hiken Hyatsu Karyouran
- Hiken Zankuusen
- Hiken Fuujin Ranbu
- Hiken Samidaregiri
- Ougi Zangan Ken Ni no tachi