Like most of the students, Aoi is a member of an after-school club at the school and practices archery. Thanks to a lot of practice, Aoi is very good. Most of the members are good friends. Everything was going well until lightning and thunder struck the establishment and the school and its students were no longer the same. They were transported to another era, a time when samurai roamed the land of Japan. The students are not only caught up in a backwardism, but they are also at the center of a historic battle.