The story primarily focuses on the members of the Juken Club and their opposition, the Executive Council, which is the ruling student body of a high school that educates its students in the art of combat. As the story unfolds, both groups become increasingly involved with an ongoing battle that has been left unresolved for four hundred years.

Soichiro Hoshias Souichiro Nagi (voice)
Shin-ichiro Mikias Bob Makihara (voice)
Minori Chiharaas Aya Natsume (voice)
Aya Hisakawaas Maya Natsume (voice)
Tomokazu Sekias Masataka Takayanagi (voice)
Kazuki Yaoas Bunshichi Tawara (voice)
Haruhi Nanaoas Emi Isuzu (voice)
Kenji Hamadaas Tsutomu Ryuuzaki (voice)
Kenta Miyakeas Kōji Sagara (voice)
Toshiyuki Morikawaas Mitsuomi Takayanagi (voice)
Toshiki Inoue