Four years after the climax of the second title, Akari's father, Genbo, noticed that the seal over the Hell's Gate had strangely been weakening. Since Akari ran away from home once more, he went with his friendly mononoke friend, Kotetsu, to investigate. When Akari returned sometime later, she learned that her father mysteriously disappeared and that seven demons have ayakashidama from her father. Linking the seven ayakashidama to Genbo's whereabouts, she heads out to collect all seven.