This is only the beginning...Chaos descends upon Itogami Island Air and sea transportation have come to a grinding halt and key personnel from the Gigafloat Management Corporation are being assassinated one after another. The proud culprit behind this series of attacks is the self-proclaimed Demon Sanctuary destruction group, Tartarus Lapse. At the same time peculiar changes begin to occur within Nagisa as the soul of the Avrora bleeds into her consciousness...