Samurai Girl Real Bout High School(2001)

Samurai Girl Real Bout High School is an action series set at Daimon High School, where students resolve conflicts through official duels in the school's battle arena. Ryoko Mitsurugi, a skilled swordswoman, is recruited by a mysterious Priestess to defend Earth from an interdimensional invasion originating from Solvania. As Ryoko confronts increasingly dangerous threats, she must balance her combat abilities with protecting her friendships and staying true to her convictions. The series blends high school drama with supernatural action, following Ryoko's journey as she discovers the weight of her newfound responsibility and what it truly means to be a hero.