武士道シックスティーン Bushido Sixteen (2010) 1080p HDTV

Kaori is an intense kendo fighter who has been training since she was young. Sanae is a girl who has only participated in kendo casually, but somehow manages to beat Kaori in the final tournament of junior high school. Although Sanae doesn’t particularly care about it, Kaori holds a grudge, setting up a rivalry that bleeds over into high school.
-japanese audio; fansub (only sub I could find- not the best).