Hakuo Academy used to be a prestigious high school, and famous for martial arts. However, because its rival school Seishikan has been cowardly luring its superior students, Hakuo was going to decline. In order to recover from the situation, the acting principal of Hakuo; Himeko Hojo, sends Ranko Yagyu to the Fuma village in search of the famous Fuma ninja clan for assistance. The leader of the Fuma sent Kojiro to Hakuo, there he faces the notorious Yasha clan who fights for Seishikan led by Musashi Asuka. Kojiro's comrades arrive, resuming an all-out ninja war that began five centuries ago.