Nagasumi, Kai, and Lunar go to save Sun. Once they get there, the Seto Group manages to break free and a huge battle commences. Nagasumi manages to save Sun and he tells her he loves her and he wants to stay with her forever.
Lunar tries hard to practice her part in a drama. She gets Sun to help her be her lover as a man. Unfortunately, Sun goes overboard and eventually gets stopped. Afterwards, Lunar gets to her next job in the Cultural Competition and has to practice Ventriloquism. So she uses Maki as her left hand. But things start to get even worse.Watch Now:Amazon
Hyuga stays behind deflecting the attacks of Kongou's fleet to buy time for Iona and the others to escape. Before leaving Iwo Jima, Gunzō asks for Takao's help and she agrees to join his side. Unwilling to listen to Hyuga's words, Kongou fires her Super Gravity Cannon at her but fails to destroy her and taking advantage of her getting exausted, orders Maya to fires her own cannon but Takao appears in the nick of time to block Maya's shot. Believing that Hyuga and Takao are just covering the I-401's escape, Kongou tracks her down and gives chase, refusing to slow down even after falling into a minefield left by Hyuga to help Iona escape. Iona tries to reason with Kongou with no success and when the battleship attempts to fire her Super Gravity Cannon underwater to sink her, Hyuga manages to hack into Kongou's systems to have her lose control for time enough to Iona and Gunzō to escape. Takao then reveals to Kongou that instead of Takao, the true decoy was Iona herself, while the vibration warhead, Makie, her friends and the rest of the I-401's crew were safely hidden aboard her and she returns to pick up Hyuga to rendevous with Iona and Gunzō, who despite escaping from Kongou's grasp, are ambushed by I-400 and I-402 and apparently sunk by them.
With her nanomaterials compromised by her sister ships attack, the I-401 sinks into the deep ocean while Iona tends to an injured Gunzō. Meanwhile, Takao and the others look for them but all communications and radar are jammed by spatial distortions from the last battle. Despite knowing that the only way for her to survive is to abandon her captain, Iona refuses to do so until Gunzō orders her to cut all life support systems, claiming that fulfilling their mission to deliver the vibration warhead is more important than saving him. However, when Gunzō stops responding, a distraught Iona breaks down her own mental model to create a survival pod for him and her core. When Takao locates the pod, she decides to sacrifice her own body and use its nanomaterials to restore Iona and the I-401, bringing them back to surface and saving Gunzō's life. Once knowing that the I-401 has not perished, Kongou can't hide the urge to fight it again, but declaring that she is displaying the same erratic behavior seen in the other ships who deviated from the Admiralty Code, I-400 and I-402 relieve her from duty and lock down her systems. In the occasion, Kongou finds out that Maya's mental model lacks conciousness, being an artificial intelligence created just to watch over her.
Nagasumi, Sun, Lunar, Mawari, Saru, and Mikawa go on what is supposed to be a double date. As Nagasumi goes to get a juice ordered by Lunar, he accidentally bumps into the class president in an intersection, whom he doesn't recognize. It is now known that the class president has a crush on Nagasumi. Nagasumi accidentally steps and breaks her glasses lying on the ground so she doesn't recognize him. After she gets new ones she recognizes Nagasumi and runs away. As soon as he catches up and asks her name she runs away again saying she'll tell him the next time they meet.Watch Now:Amazon
Nagasumi's mom and Sun go shopping for groceries, leaving Lunar alone with Nagasumi. Lunar plans to make her "slave" help her study for school since she is getting zeros on all her tests. Eventually it gets to the point where Lunar starts to come on to Nagasumi while outwardly stating that she would never fall in love with a human. Through many badly timed, but well-meaning errors, Nagasumi ends up being engaged to Lunar.Watch Now:Amazon
After the attempt to rid of Nagasumi from Sun fails. Akeno is now undertaking a mission, to foil Nagasumi by forcing him to gulp down a mermaid drink which will release mortals of their strongest desires, thus forcing Sun to break away from Nagasumi. The plan fails, however, when everyone except Nagasumi gets drunk.Watch Now:Amazon
Kongou obliterates the ships of the American Fleet of Fog and Iona, along the other mental models, make contact with Kongou in an attempt to bring her to her senses. However, Kongou claims that it's her duty to prevent further anomalies to the Fog by destroying Iona and all ships who come in contact with her, including herself, before locking down all communications. After barely deflecting an attack of Kongou's enhanced Super Gravity Cannon, the I-401 conceals itself, knowing that confronting her directly is useless, when Iona decides to reach Kongou and confront her face to face. Gunzō agrees with her plan and after evading a massive barrage of attacks, Iona boards a torpedo to reach Kongou's deck. Iona attempts to reason with Kongou who keeps attacking her until she finally traps Iona and prepares to self destruct herself to kill both, when the sequence is disrupted by I-401's Super Gravity Cannon. In the end, Iona suceeds to dissuade Kongou and prevents the destruction of both. The reformed Kongou befriends Iona while the superstructure created by her collapses. Days later, as the I-401's crew delivers the vibration warhead to the U.S. Navy as intended, Takao's body is restored and they return to the sea, hoping that their actions have helped change the world for the better.
Lunar's father searches for ways to express his love and cheer up his precious daughter when he accidentally spots a Galge from a search engine. Armed with his new "knowledge", an iron will and an iron body, Lunar's father once again attempts to comfort Lunar (to everyone's horror), while convincing Gōzaburō about "a daughter's heart" in the process.
Akeno Shiranui, a mermaid examiner has come to record and observe mermaids that doesn't fit well with humans and send them back to their origin. Now Sun must overcome her own fear and tries her best not to fail the examination with Akeno keeping an eye on Sun's every action.Watch Now:Amazon
Nagasumi finds a kitten and brings it to school. Nagasumi soon discovers that Sun, Lunar, and Maki are all deathly afraid of cats, and gets the idea to test it on Kai and Gōzaburō too, but before that learns that most mermaid adults are not afraid of cats anymore as they eventually get over their fear; this however does not apply to Gōzaburō due to a tragic experience as a child. Nagasumi decides to make this into an advantage.
Defeated by Akeno, a group of delinquent lords follow her around which mislead Mawari into believing Akeno was also a delinquent. In order to protect the society, Mawari decides to go all out against Akeno. Meanwhile, The teachers from Seto clan also plotting their own plan against Akeno. Though Sun finally convinces Mawari to rethink of the situation, the unstoppable clashes has already begun.
Believing Masa was an acquintance of her older brother, Akeno asks Masa about her brother's whereabouts, but Masa had lost his memories before joining the Seto clan. Gōzaburō then reveals to Nagasumi that Akeno's brother is actually Masa himself. While unaware of this fact, Akeno intend to punish her brother's for his irresponsibility, forcing Nagasumi to protect Masa using any methods available.Watch Now:Amazon
After Sun and Lunar go on a diet, Sun's father buys her all sorts of presents to help her out, including some special "mer-water" that energizes and gives strength. But many problems arise when Nagasumi drinks it by accident, not only giving him the powers of a merman, but also growing him to gigantic proportions.Watch Now:Amazon
Nagasumi receives a love letter from the class president. Being the first love letter he has received in is life, he completely loses his mind. Maki takes the letter from Nagasumi's pocket and reads it outloud for everyone to hear. Mawari, Lunar, Sun, Gozaburo, and other relevant people hide behind a bush to see whether Nagasumi comes or not. Nagasumi comes and is beaten by Lunar's dad and Gozaburo.
The battle against Haruna and Kirishima begins with the I-401 drawing them to a trap they set at the ruins of the old Yokosuka city, which fails to damage the enemies but allows them to circle around them undetected and launch a surprise attack using the now sunk Japanese battleship Mikasa as a decoy. However, Kirishima prevents being hit in the nick of time and launches a barrage of warheads at them, which they barely manage to avoid. To finish the I-401 for good, Haruna and Kirishima combine together to generate a huge gap in the water and trap it into the line of fire of their Super Gravity Cannon, but just before firing at Iona, they leave themselves vulnerable to her last Erosion Torpedo concealed inside Mikasa's wreckage that triggers a chain reaction destroying both ships, although Haruna's mental model manages to salvage Kirishima's core and escape. In the next day, a child finds the unconscious Haruna inside an abandoned warehouse.
Following Keita's sudden death, Hibiki remains visibly shaken due to the fact that they couldn't prevent it. As Merak arrives in the city, Yamato has JP's members move Hibiki into position to intercept it. At the Osaka Juso Ohashi Bridge, the Japanese military tries and fails in their attack against Merak while Botis and "The Anguished One" discuss the state of affairs. With of the loss of most Osaka's spiritual barriers, Merak fully manifests itself and makes its way to the final barrier - "Tsutenkaku". Meanwhile, as Hibiki is deployed into the field, Hinako and Io discuss his mental state due to Keita's death. Meanwhile at the Umeda Sky Building, JP's summoners try to stop Merak with a swarm of Itsumade but it kills them all in an instant. As Io heads to Hibiki's location, Merak then launches a devastating ice attack, at the "Tsutenkaku" barrier, which survives, but the attack leaves a path of destruction and kills many more people, upsetting Hibiki. Not wanting any more people to die, Hibiki abandons his post and proceeds further up the battleground to confront Merak. Io arrives just as Hibiki departs and Yamato sends a "replacement" for Hibiki. Hibiki arrives at the current battleground at Kawaramachi in the Osaka Chūō-ku Ward and intervenes in Hinako and a platoon of JP's summoners fight against Merak. Hibiki has Byakko unleash a strong lightning attack at Merak, which doesn't have any effect. Merak counterattacks and Hinako protects Hibiki but gets severely injured which then shatters his fighting resolve. In the wake of the attack, the "Anguished One" approaches Hibiki and introduces himself as Alcor. He informs Hibiki, that because of his "choice" to fight, Io has taken his place at the final defensive line, causing Hibiki to head over there. Io's feelings allow her to summon Kikuri-Hime and proceeds to attack Merak with support from the JP's summoners. Although Kikuri-Hime manages to severely damage Merak, it sheds its outer layer and begins charging up i
Hibiki Kuze, is waiting for his friend, Daichi Shijima, after finishing their practice exams. While discussing their future, Daichi introduces and registers them onto a recently popular website called "Nicaea", a video delivery site that allows people to see videos of their friend's death. Later, at the train station, they receive videos from Nicaea that show both of their deaths by an oncoming train at that exact station. Shortly after, before the train arrives, an earthquake occurs, causing the incoming train to derail and cause the same devastation they saw in the videos. On the verge of death, Nicaea offers Hibiki a second chance to live and a Demon Summoning App is forcefully downloaded into his phone. He and Daichi awake to find the station in ruins with most of the people dead. They then witness vile wolf-like creatures eating the corpses of the recently deceased. As the creatures turn their sights on them, rescued fellow classmate Io Nitta and Daichi inadvertently manifest demons from their cell phones which repeal the attacking creatures and allow them to escape. Making it back to the surface, they find that all of Japan has met with the same type of calamity before a strange organization takes over rescue operations, with the officer in charge pondering that humankind must survive "Judgement Day" even if it means using demons. With nowhere to go, the three decide to stick together and while waiting in Roppongi, the crowd is attacked by a demon called Dubhe. At the same time Hibiki receives another video showing Daichi's death, before Daichi bursts out of a corner with a delivery truck, intending to ram the demon. As the truck explodes, Hikibi, overcome with emotion, manifests his Avatar: Byakko, a tiger like demon which he manipulates and successfully destroys the Dubhe. In the aftermath, Daichi had been saved by another one of Io's demons, a pixie-like creature before the group is approached by the Japan Meteorological Agency: JP's. Elsewhere, a mysteriou
Nagasumi's life only gets more hectic with the arrival of Kai Mikawa, a handsome, rich, but agoraphobic merman, who insists that Sun is his fiancé. Kai transfers to the school and challenges Nagasumi for Sun's hand in marriage during Sports Festival Day.
On their way to Hawaii, their next stop of their journey to deliver the vibration warhead in San Diego, the restored and upgraded I-401 is chased by several Nagara class ships that are surprised and sunk when Gunzō orders an unexpected maneuver to sweep them all at once. After the battle, it is revealed that despite losing her physical body, Takao's core is still intact and she is now part of the I-401's systems. However, knowing that they are still being followed by I-400 and I-402, Gunzō decides to confront them. Before the battle, Iona's sisters make contact with her asking for her true intentions but she claims it is too difficult to explain with words. Meanwhile, an imprisioned Kongou breaks free and absorbs Maya along all the other ships arround her. To confound their enemies, the I-401 moves forward along two decoys with increased capabilities, thanks to Hyuga, Haruna and Kirishima's direct control over them. After exchanging some fire, Iona contacts her sisters asking them to stop pursuing them before it is too late but they refuse to comply. When I-400 is about to be stricken by surprise, I-402 sacrifices herself to protect her sister, who despite finding this decision illogical, becomes driven into anger, leading her to fall into a trap set by the decoys and her defeat as well. Despite grieving for her lost sisters, Iona maintains her resolve to follow Gunzō to the end. However, the I-401 is soon after approached by a dozen ships from the American Fleet of Fog at the front, and a massive flying object at the back, composed of several fused ships led by Kongou, who claims that she wlll be the one who will sink I-401.
The situation at school keeps escalating, and even Maki is hurt in the process. In order to avoid total war, Nagasumi comes up with a plan to settle everything in a singing competition between Sun and Lunar, with Nagasumi himself as the collateral.Watch Now:Amazon
Nagasumi is taken back to Lunar's house where a wedding ceremony is going to soon begin. Moments before Nagasumi is meant to become her husband, Nagasumi voices his disapproval of a false wedding, and promptly refuses to continue with the wedding. Suddenly, Sun appears and voices her disagreement with the wedding as she uses her sword to defeat Lunar's guards and announce her love for Nagasumi.
With Iwo Jima surrouded by the enemy fleet, Hyuga makes contact with Kongou by Gunzō's request, asking for a meet in private with her mental model before they begin hostilities. Kongou answers her call and she rendezvous with them at the beach, accompained by the Heavy Cruiser Maya. As the rest of the crew remain on standby aboard the I-401, Gunzō discuss with Kongou and the other mental models about the real intentions of the Fleet of Fog and learns from her that she and the other ships have only one purpose, which is to follow the "Admiralty Code" that instructed them to chase the humans away from the seas and prevent all contact overseas between them. Instead of discussing the matter further, Gunzō invites the guests for a barbecue at the beach where Kongou asks Iona about the reason why all ships who come in contact with her start displaying a behavior independent from the Admiralty Code, but when she refrains from responding, Kongou claims that she will not fall by their trap and it is revealed that both her and Maya's mental models are actually decoys, with their cores being safely guarded at their respective ships to prevent them from being influenced by human behavior, before they begin to attack. Hyuga has a hard time defending the island against the enemy barrage until Takao, Haruna and Kirishima step in to assist her. Disappointed that he and Kongou could not see eye to eye, Gunzō declares that it's up to him to find a way past her and deliver the vibration torpedo to the United States.
The episode starts off by showing us Kyohei opening Kukuri's left hand and shooting the mystery kakashi. After reminiscing a bit, Mahiru tells Aki that she will topple the village rules so that she can be with Kyohei, but Aki tells her about Hibino. Meanwhile, Kyohei's group and Koshiro are wondering why Mahiru is in the city. The next day, Moyako and Hibino go out shopping. However, when Moyako goes off to the bathroom, Hibino is kidnapped by Mahiru. Mahiru questions Hibino a bit before leaving to go talk with Kyohei. However, she crushes the box of cookies that Utao made for Kirio, which angers Utao into attacking her. Mahiru shrugs off the attack easily, though, and asks Kyohei to return to the village with her. Kyohei refuses, and Mahiru leaves in anger before anyone can stop her. Kyohei sets off with Utao to find out where Mahiru has gone, and gets a call from Kuuko with Hibino's location. The episode ends with them setting off on Kukuri with Moyako and a man from an earlier episode starting to move in on Hibino.
The episode starts off with the gang finally leaving the village. On their way out, Utao notices Kirio and jumps on Kukuri to go meet him. She tries to smile at him in the way she was advised in the earlier episode, but he responds by sticking his tongue out at her before she can do it. Upon returning to the city, Kyohei suggests that they all go to the beach, which excite Utao. However, her expectations are shattered when they reach the beach only to find a typhoon. They find that their rooms are leaking water, so they come down to ask the owner of the inn about it while Utao bathes. However, as they are asking about it, a giant crash of lightning strikes and part of the inn falls down on the owner. Hibino rushes off to get Utao, who brings Kukuri to lift the wreckage off of the owner. The power goes out, so Kukuri goes out to the shed to look for a generator. However, Utao can't see in the dark, so Kyohei goes out to check. A sheet flies over Kukuri, and Utao accidentally knocks Kyohei out. Hibino goes out to check on him and they bring the generator back. On the way, a sign flies towards Hibino, but Utao is able to save her with Kukuri. The next day, the storm clears, and Utao is finally allowed to go to the beach. Back in the city, Hibino goes to the city's library to return some books for her father. Utao, never having been to a legit library, gets curious and jumps at the chance to see it when she finds out that Hibino's father had forgotten to give her a book. While he's alone, Kyohei starts to think back about his quitting being a Seki, revealing that the true reason was that he feared he was like Aki and that he would do something similar if he snapped. At the library, Hibino runs into Aki, who notices that Kyohei has told her about Chihaya. Hibino asks Aki why he keeps going after Kyohei, to which Aki answers that he can see the darkness within Kyohei that no one else can. He muses about pulling out this darkness by harming Hibino, but Utao shows up to par
Takao blocks the I-401's path to Yokosuka by positioning itself inside the eye of a typhoon and after asserting that any attempts to avoid confront are too risky, Gunzō decides to take Takao head on. After Iona barely evades an attack from Takao's Super Gravity Cannon, Gunzō analyzes the combat data so far and points out that Takao's attacks have had pinpoint accuracy from a distance much greater than its usual sensor capabilities and concludes that it is only possible by having a submarine concealed directly under its hull. Gunzō then orders the crew to ready their own Super Gravity Cannon which they salvaged from their previous battle with the Fog ship Hyūga and uses it to destroy the submarine and force Takao to surrender. Having her systems locked down for 24 hours by Iona to prevent her from give chase to the I-401, Takao wonders about the reasons why Gunzō spared her and takes an interest on him.
The I-401 and her crew reach the Yokosuka Base for repairs and resupply, and Gunzō takes Iona for a visit to Navy memorial for those that died in the war against the Fleet of Fog. Soon after, they are taken against their will by the Japanese Army with the rest of the crew to meet Ryōkan Kita, a former member of the Navy and an influential politician who attempts to convince Gunzō to relinquish the I-401 to the Japanese Army with no success. Meanwhile, Takao is approached by the mental models of Fog surveillance submarines I-400 and I-402 and reveals her intentions to abandon the fleet and join Gunzō's side. However, she is informed by them that two Fog battleships were dispatched to sink the I-401 and Takao leaves, claiming that she will wait for Gunzō at another location. When the Yokosuka port is under attack by said battleships, Haruna and Kirishima, Gunzō and his crew return to their submarine, subduing all resistance from Kita and his men and prepare themselves to confront the new enemies before them.
The last episode ended with a Seki named Mahiru showing up and grabbing Kyohei's arm. We step aside from the action for a second to Kuuko and Aki, who are meeting a man named Hirashiro Takeshi, a Diet member from the village. Back to the rest of the gang, where Mahiru is all over Kyohei, prompting Koushiro to tell her to go back to the village. Mahiru gets angry and lashes out with her Kakashi, Magatsuhi, but Koushiro defends Hibino and starts to battle with her. However, Koushiro's Kakashi is captured . Moyako tries to stop the fight by threatening to stop maintaining Magatsuhi, and while Mahiru is distracted, Kirio and Utao tag team it up to take out Magatsuhi's barrier and free Uwazutsu. Taking another step away from the action, Hirashiro explains to Aki that he is trying to bring the Kakashi out into the light to benefit people outside of the village. However, the elders would never approve of that, so he needs to get rid of them, and for that, he freed Aki. He asks Aki to join him, but at that moment, Mahiru bursts into the office, spewing her hate for everyone. Aki starts to fight her, but Magatsuhi is able to get the barrier up right as Aki just misses her with his attack. However, Mahiru doesn't kill Aki because she doesn't want to upset Kyohei. Koushiro meets with Kyohei to ask him about his connection with Mahiru, and Kyohei starts to tell the story of eight years ago, when he and Aki met Mahiru. They find a cave and go in to explore it. There, they find a strange Kakashi covered in moss. The Kakashi activates and captures Aki, but Kyohei cuts him loose with Kukuri. The three Seki team up to try to fight it, but are unable to do any real damage. Aki manages to get a hit in, but it's not deep enough and Kuramitsuha takes a beating. However, Kyohei is able to get a clean hit in while it's charging its laser. Aki realizes that the Kakashi can consume minds, which is why it could move without a Seki. The Kakashi is still moving, though, and it blasts all of th
The I-401 returns to Yokosuka to pick up the secret weapon developed by the Japanese Government, the "Vibration Warhead", before returning to their base at Iwo Jima to make the final preparations for its journey across the Pacific. Meanwhile, Haruna awakens and meets Makie Osakabe, the child who rescued her. Pretending to be a human, Haruna keeps Makie company while Kirishima's core uses some of her nanomachines to make a spare body for her out of a Teddy bear. Takao arrives at Iwo Jima ahead of I-401 but is stopped by a vicious attack from unknown origin. Realizing that Makie is related to the deceased Tōjūrō Osakabe, the creator of the Vibration Warhead, Haruna and Kirishima contact their flagship Kongou and are instructed to investigate further. In the occasion, the two mental models are introduced to Tōjūrō, who is revealed to be alive, but bedridden. Tōjūrō reveals that after several failed attempts to develop a weapon to counter the Fleet of Fog, he came with a plan to create an artificial being with superior intellect capable to succeed where he did not, and the only surviving offspring of said project is Makie, who was the true creator of the Vibration Warhead. To protect Makie from the government, Tōjūrō forged his death and kept watching over her from the shadows but knowing he has not much time left and seeing how attached she became to them, he asks Haruna and Kirishima to take care of her. However, the army is already aware that Makie had made contact with ships of the Fog, and sends a unit to dispose of her.
The episode starts out where last episode's left off, with the teacher, Chihaya, arriving at the village. She sees Aki being ganged up on by 4 guys, one of whom is a Seki named Atsushi. He attacks Aki with Kuramitsuha, but the attack is blocked by Kukuri, who is controlled by Kyouhei at this time. Kyouhei introduces the woman as Senou Chihaya, and she begins to lecture Aki, who just ignores her. She ends up taking over for a sick teacher at the local school, but she has no prior exposure to Kakashi or Seki. Kyouhei later sees Aki, who has been forced to care for a dog by Chihaya, and Aki finds himself strangely unable to disobey her. The Seki from earlier returns to try to ask Chihaya out, but she adamantly refuses and asks him to leave. She is later scolded for raising her hand to a son of the Kuga, which angers Kyouhei. Kyouhei vows to protect her, but she refuses his help. She later runs into Aki, who compares himself to her a bit, in that they both rejected in the village. The next day, someone writes on the chalkboard that Chihaya committed adultery, which causes her to run away from the school, but returns after running into Aki again. Kyouhei chases after her, and ends up talking with Aki about her. Chihaya's reputation continues to deteriorate and she is once again approached by Atsushi, but Aki appears to protect her. She reveals to Aki that the writing on the chalkboard was true, and that she had indirectly caused the father's son to get hit by a car. Chihaya tells Aki that he reminds her of that boy and proceeds to kiss him. They then make love. She asks Aki to leave the village with her, but he refuses, saying that he has to regain Kuramitsuha. The next day, Chihaya finds out that someone took pictures of her with Aki and they had been given to the principal, who fires her. That night, Chihaya hears Nono, but hears it whimper and she rushes out to check on it. She is greeted by Atsushi and Kuramitsuha, who kidnap her. Aki finds the dog dead and a note sa
Taking Haruna, Kirishima and Makie with them, the I-401 and its crew arrive at their base in Iwo Jima, where they are greeted by the fast battleship Hyuga's mental model who was guarding the island for them, and much by their surprise, they meet Takao once again. As Hyuga make repairs on I-401, Gunzō and his crew prepare to abandon the base as there are not much supplies left and they know that delivering the vibration torpedo to the United States may ensure their objective, which is to put mankind and the Fog on equal terms, which may lead to the end of the blockade. By Hyuga's suggestion, Takao considers joining Gunzō and the others' side while Haruna and Kirishima are contacted by Kongou who asks for their intentions. While Haruna affirms that she will not return to the Fleet of Fog for Makie's sake, Kirishima claims that she will continue by their side for the sake of gathering info. Kongou then assembles her fleet and prepares an assault on Iwo Jima.
The episode starts with the detective coming into the restaurant. He starts to ask Utao some questions and Utao answers nervously, which causes him to suspect her. Meanwhile, Aki is still staying with Kuuko, who is hacking her father's computer to find more information. Moyako makes a surprise appearance at the restaurant and checks up on Kukuri. She notices that Utao used Kukuri's left hand and reveals that Kyohei was the first in centuries to be able to open Kukuri's left hand. When Kyohei and Hibino return, Moyako tells them that she came back because Koushiro asked her to bring back Takemikazuchi in a rush. She refused to return it until it was perfectly repaired, so Koushiro paid for her to finish the work in Tokyo. Kuuko continues to try to get information out of Aki, but he refuses to say anything. However, her father shows up to check on her. He searches around and finds nothing, but Aki escapes through the window. Kyohei calls Koushiro and asks about how Kirio is doing, but Koushiro tells him not to worry. Kyohei tries to ask him about his business in Tokyo, but Koushiro won't talk. Kyohei organizes a time for Kirio and Utao to meet and Kyohei and Koushiro make Kirio promise not to fight with Utao anymore. However, at that moment, a girl Seki appears, who Koushiro recognizes as a girl named Mahiru, and hugs Kyohei as the episode ends.
Namikoshi is trying to change the world using the power of Twenty Faces. Those who are dissatisfied with society gathered to support Namikoshi and his law. What is Namikoshi trying to do? Can Akechi get there before it’s too late? -- last episode of the anime
Mawari notices Sun's fishtail and comes to the conclusion that Sun is a fish. She keeps trying to splash Sun with water in order to verify her theory, but Nagasumi protects Sun, while at the same time trying to save Mawari's life from the mermaid code of law.
Airi and Jungo sneak into the JP's Nagoya Branch through the air ducts, while elsewhere, Daichi and Io rush to Hibiki's location in order to prevent his death. As Ronado, Hibiki, Joe and Otome scout the Nagoya TV Tower in anticipation of the third Septentrione, Otome is hesitant to fight, especially when the JP's members such as herself have been told little to nothing about the Septentriones, although Ronaldo states that they should have no problem since their demons are much stronger than those used by JP's summoners. At the same time, as Hibiki ponders on Nicaea's origin and his power. Later, back at the Nagoya Branch, Otome and Hibiki have a brief discussion comparing Yamato's methods versus Ronaldo's methods. At this time, Daichi and Io arrive and tell Hibiki about his death clip while Makoto covers for them at the JP's Headquarters. Daichi and Io try to get Hibiki to return with them but he states that he can't because of the imminent Septentrione attack. Eventually both group's shared feelings of wanting to protect each other, cause Daichi and Io to remain in Nagoya with Hibiki. Meanwhile, as Resistance members begin clearing out the base's Command Center, Airi and Jungo inadvertently fall through the air ducts and ensue in a battle with the Resistance members. Ronaldo enters the fray and tries to reason with them, although Airi becomes far too entertained by the heat of battle that she ignores and attacks Ronaldo, even after Hibiki pleads for them to stop. At this time the manifestation readings suddenly increase and the Septentrione: Phecda manifests itself directly in the Command Center to everyone's shock. Ronaldo immediately issues emergency orders and has Airi and Jungo help attack Phecda along with Joe. As the group launches an assault, their demon attacks are not strong enough to damage Phecda, who counterattacks with an electrical attack, wiping out their demons along with the Branch's main power. Just then Hibiki, Daichi, Io and Otome arrive and att
Hibiki, Daichi and Io are arrested by the JPs and brought to a secret underground base located at the National Diet Building. Here, Commander Makoto Sako, explains to Hibiki that the JPs protects Japan from "paranormal anomalies" before she introduces the JP's Chief, Yamato Hotsuin who says that Hibiki's demon Avatar: Byakko is unique, being one of the four symbols of the Chinese constellations. Furthermore, he explains that the Dubhe was only one of 7 creatures called the Septentriones, each of which will appear in the next six days and should the JPs fail to defeat them then the world will disappear. As the JP's scientists begin to analyze the demon summoning app, Hibiki ponders on Yamato's words. The following day, Makoto releases them by taking them to an emergency shelter in Chūō. Here, it is discovered that a rumor of demons running amok is spreading. As Hikibi looks around at all of the refugees in a church, a winged-demon attacks and Hibiki summons Byakko to protect them. As Hibiki fights an endless swarm of the demons, Makoto shows up with her demon, Power and helps Hibiki defeat the winged-demons by destroying the rogue cellphone which had been summoning them. In the aftermath Hibiki walks away when he realizes the refugees are afraid of him, but gains resolve, along with Daichi and Io to help the JP's after a child thanks him for protecting them. Back at the Diet Building, Yamato outlines Hibiki, Daichi and Io's first mission: to locate and rescue missing JP's scientist Dr. Fumi Kanno. In the epilogue, Yamato has a short dialogue with the mysterious man about Hibiki, while elsewhere, somewhere in Nagoya a man remarks that their "plan" shall be set in motion.
Under Yamato's order, Hibiki, Daichi and Io rides on the secret train of JP's to Osaka to help find their chief scientist, Fumi Kanno, who has lost contact recently. They are greeted by another summoner of JP's, Hinako Kujou, at their arrival, but the other summoner Keita Wakui is less welcoming of the three fellow summoners and is returning to his mission of hunting down malignant demons. At the Osaka headquarter, its computer system is under attack from the whole Japan's network. At the same time, Hinako receives Keita's death clip, Hibiki instantly concludes that the scene of Keita's death is related to the hacker attack. Although Hibiki asks an operator to inform Keita not to head to the location of his death scene, Keita cannot receive the call due to being ambushed by Gozuki and Mezuki. All four summoners head to the abandoned theme park where the hacker attack originates from. Hinako commands Lilim to rescue Keita from falling off the stairway, supposedly averting Keita's death fate. When planning for reaching the very location of the hacker, they discover it is Fumi brainwashed by Botis, the demon behind the hacker attack. After defeating Botis and destroying Fumi's computer equipments, Botis reappears, blasting the whole area with lightning. Daichi manages to save Fumi, but Keita who reflexively pushes Hibiki away from the range of the lightning is hit then sent falling down the stairs to his death, just as the Nicaea death clip had predicted. Meanwhile, JP's detects the arrival of a new Septentrione in Osaka due to the lost of barrier from the hacker attack.