In Osaka, Hibiki struggles with his inability to save Keita from perishing in battle. Meanwhile, with Osaka's spiritual defenses down, an ultra-powerful enemy named Merak has manifested and is making short work of all who would oppose it. Hibiki is placed on standby but races off, intent on protecting the others from harm. But his actions will have unforeseen consequences as Io is ordered into the fray, and Hibiki comes face-to-face with Ronaldo, an en enigmatic figure from JP's past.

Daichi, Hibiki and Io are transferred from Tokyo to the JP's Osaka Main Bureau. There, they encounter Hinako and Keita, two recently recruited Summoners. No sooner has the trio arrived than Osaka finds itself under a massive attack, one that combines hacker knowhow with mystical energies.

Three friends are thrust into a war they never asked to be a part of, wielding demons that they summon through their cell phones to battle the invading Septentrione, with the entire world at stake.

The old world is gone, and Yamato stands poised to remake the world as he sees fit. Hibiki is determined to thwart him, but it will take all his resources as Yamato reveals the true extent of the demon-summoning app's powers. Using its function of demonic fusion, Yamato brings forth Satan himself. In the end, only one will stand before Polaris, who will grant not simply an audience -- to the victor will go the chance to wish for anything they desire.

The battle against the Septentriones is complete, and the final battle line has been drawn. The Void continues to expand, devouring all of existence, and Alcor and Yamato finally resolve their long-brewing conflict. In the end, only Hibiki will remain, determined to stop Yamato in his attempt to remake the world -- but will the strength of his convictions be enough?

The seventh Day of Judgment has arrived, and the final Septentrion appears, leaving a path of destruction in its wake. With Hibiki still in a coma following the previous day's encounter, Daichi and the others -- armed with a newly redesigned summoning app -- will band together in an effort to stop it. But their confidence is shaken when all of them receive dead face clips, and the enemy reveals it has a disruption wave that can prevent their demons from being summoned. Will a last-minute arrival be enough to turn the tide of battle?

Mizar, the sixth Septentrion, will soon manifest in Tokyo -- but Yamato has already plotted its course, and devised plan of attack. To defeat Mizar, JP's will summon a powerful demon named Lugh; unfortunately, controlling it will mean trapping it in a human vessel that is bound to be destroyed. That vessel turns out to be Io, and when the others learn of the fate that will befall her, Hibiki will launch a desperate effort to save her from certain doom.

Daichi and Hibiki are two high-school friends on the verge of graduation. The latest rumor to go around their school: Nicaea, a "dead face delivery site" that supposedly sends photos of one's friends at the time of their death. When Daichi and Hibiki suddenly meet their own untimely end, they are mysteriously revived by Nicaea and thrust headlong into a long-brewing battle between human and demonkind. Now, armed with Demon Summoning apps and accompanied by fellow student Io Nitta, they must fend off a series of demonic attacks that are targeting the heart of Tokyo.

Shiroe and his group take Serara southwards. On the way, they stop at the house of one of the "People of the Land". The people of the land were originally only characters in the game, with no personalities or unique traits of their own, but as Naotsugu talks to them, something seems odd... The party gradually realizes that the world isn't the same as it was when it was a game.

Tomo visits each of her best friends' houses. She meets Carol's mom, gets some help studying for midterms at Misuzu's, and... stays overnight at Junichiro's house?!

After the latest attempt on his life, Bojji is overjoyed to discover that he has a secret guardian. Domas is willing to do whatever it takes to gain Daida's trust. The Magic Mirror directs Daida to an elixir that will supposedly grant him Bosse's power.

A surprise visit from an old friend prompts the Corpse God to rethink how he fits into his new world. His first step? An overdue confrontation with Xiaoyu. Meanwhile, Iwanome, Clarissa, and Solitaire pursue the same mystery in their own ways.

A surprise visit from an old friend prompts the Corpse God to rethink how he fits into his new world. His first step? An overdue confrontation with Xiaoyu. Meanwhile, Iwanome, Clarissa, and Solitaire pursue the same mystery in their own ways.

The mysterious Civil visits the Corpse God to have his fortune told, and the encounter surprises both of them. The necromancer draws a step closer to the traces of his old world, but are they friend or foe?

Dali continues to search the Ichijo house. Migi, by perfectly playing the role of an infant, tries to draw out the secrets of the Ichijo family.

After achieving first place in the test, the Sonoyama family was invited to the suspicious Ichijo residence. Dali, seeing this as an opportunity, thoroughly searches the Ichijo house. However, she falls into Eiji's trap, and Migi ends up being captured.

Ketil gathers men to fight and defend his farm from the king's forces. Meanwhile, Thorfinn and his friends try to figure out how to escape with Arnheid before the battle ends.

Teru travels to Russia to assist Pepesha's investigation into the mysterious girl they encountered at the North Pole. Not only are details about Pepesha's past brought to light, but new information leads to some disturbing implications about Tzveta.