When a demon drags Akane Motomiya and her companions Tenma and Shimon into an alternate realm, Akane is anointed as the Priestess of the Dragon God. The inhabitants of this world inform her that she is the sole hope to thwart the demons' domination, while the demons aim to exploit her might for their own motives. Fortunately, Akane has the Hachiyou, a team of eight men with their distinct abilities, who have pledged to safeguard the Dragon Priestess.