It is the Edo Period. Younosuke, Nami, and Koutaro of the Hayate School and Ikkaku and Ikki of the Ikazuchi School are confronted by Oiranda and Aunja of the "Seven Spears of Darkness" and then Teruhime, whom the two Ikazuchi School members guard, is attacked. They were after the "Tenshoishi" ("Ascension Stone"), a…