Hibiki is put into intensive care at the JP's' Tokyo Branch. As the demon summoners look on, Io can't help but feel responsible for his current condition, although she is comforted by Jungo and Airi. Meanwhile, Alcor is visited by Botis and Bilfrons, the former of whom tries to attack him because of his supportive stance on the humans. Fumi updates the JP's phones with software capable of summoning stronger demons. The next day, Io, Daichi, Airi, Jungo and Hinako have breakfast together in a single moment of peace and officially introduce themselves to each other. As they go to exchange emails, they all simultaneously receive each other's death clips. Suddenly the last Septentrione: Benetnasch appears and destroys the Sapporo barrier with a single attack allowing the Void to consume the region. As Fumi outlines that it possesses the abilities of its predecessors, the Osaka and Nagoya regions are wiped out each with a single blast. Yamato then orders everyone to begin the operation. A flashback into Hibiki's past shows him growing up with strict parents. At a playground Daichi defends Hibiki from some bullies and the two quickly become best friends. After being able to enter high school, Hibiki's father warns him of choosing his friends carefully, but he chooses to reject this ideal and remain friends with the carefree Daichi. Simultaneously, Hibiki regains consciousness and tears at his sudden reminiscence. Meanwhile, Benetnasch eradicates the Diet Building in a blast equivalent to a nuclear explosion, rocking the city and exposing the Ryumyaku seal beneath its foundations. Here, Yamato has the JP's channel all of the Ryumyaku's power through him while creating a shield to defend from Benetnasch's attack. At the same time, Makoto and co. summon their demons and launch a barrage of attacks at Benetnasch which seem to overwhelm it. However, it suddenly splits part of itself off and emits a particular frequency that forcefully cancels their demon summons. Having anticipated this, Fumi, summons Trumpeter and has it neutralize Benetnasch's frequency. After warning Makoto to monopolize on the opportunity, Makoto receives Fumi's death clip, just as Benetnasch kills her with Phecda's laser. Realizing that protecting the summoners is wasted effort, Yamato cancels his shield. This allows Benetnasch to use Megrez's ability and launch multiple Dubhe clones which explode and kill Airi, Jungo and Hinako much to Daichi and Io's horror. Just as Daichi, Io and Makoto are about to be attacked, Hibiki appears and protects them with Suzaku. When he learns of his friends' deaths he charges at Benetnasch in a blind rage and defends an attack using Shakko's power. Angered by Yamato's abandonment of everyone, Hibiki begins debating within the heat of battle but again to no consensus. Just then, Benetnasch attacks them both with a powerful strike, but they are able to defend by combining their shields, which gradually begin weakening as Benetnasch focuses its power. No longer being able to sit and watch Hibiki die, Daichi summons the powerful Black Frost and with its help, they successfully destroy Benetnasch and survive the seven days of trials. In the aftermath, Yamato states that if Hibiki cannot kill him to stop his ideals, then he would take his life instead. Although Alcor appears and refuses to let Hibiki die.
Elenco: Hiroshi Kamiya , Ami Koshimizu , Nobuhiko Okamoto , Aya Uchida , Takahiro Sakurai , Junichi Suwabe .