After quashing the rebellion in Aldegia, Koujou and his friends return toItogami island
to find that in their short absence, there has been a violentupturn in the status quo!
The Gigafloat Management Corporation has beenhijacked, and war brews between the
demon clans for control of the territory.And once again, the Fourth Primogenitor has
been drawn into the heart of theconflict, al while the perpetrator's true intentions
remainunknown!