Shirou's twin brother, and also the head of the Ryuujouji school.

Improbable as it sounds, perky junior high student Jiyu "Jubei" Nanohana is the reincarnation of the legendary samurai Yagyu Jubei. When she puts on the fabled Lovely Eye Patch, she becomes a devastating swordswoman and assumes all related responsibilities - including a 300-year-old vendetta with the Ryujoji clan.<br>
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(Source: Media Blasters)

Three hundred years ago, in the frigid land of Siberia, Jubei Yagyu engaged in a fierce battle with Kitaretsusai of the Northern Yagyu clan. The duel was costly, as his daughter Freesia was frozen in suspended animation. As a result of global warming in the present day, Freesia breaks free from her icy grave and moves to Japan as a middle school transfer student, where she befriends Jiyuu Nanohana. Little does Jiyuu know that Freesia is targeting her to acquire the coveted Lovely Eye Patch, which Freesia believes is rightfully hers.<br><br>
(Source: Anime News Network)

Hajime Ryuujouji