Gamindustri -- A parallel world protected by four goddesses, who are engaged in a war with one another in Celesta.

Meanwhile on the human world, mankind wages war with monsters unleashed by a being named Arfoire. The tome, Histoire, contains the knowledge of the past necessary to end both wars and shape the future.

What fate awaits Neptune in the present? The goddesses' battle for Gamindustri, the Console War.