Tension grows between the Roman Catholic Church and Academy City since the attack by Vento of the Front. Tōma Kamijō has an unlucky day when a hungry Index bites him, Seiri Fukiyose hits his head with a ball, his teacher named Suama Oyafune attacks him for walking in her removing her skirt, and Mikoto Misaka attacks him after she found a selfie of him and her mother on his phone. Later, he is forced to follow an old woman named Monaka Oyafune, who turns out to be Suama's mother, to an empty park
Tōma is parachuted into a river and almost drowns but is saved by Itsuwa of the Amakusa Catholics. He explains to Itsuwa that he and Tsuchimikado are trying to find Constantine's Document, also known as the C Document, a magical item that was long ago given by Emperor Constantine to the Pope which allowed whatever the user believes, the people living on Papal Lands also believed it, which Tsuchimikado believes is responsible for the world wide anti-Academy City protest. Bringing him to a cafe, I
Motoharu joins Tōma and Itsuwa in their fight against Terra, who quickly escapes after unmanned powered suits sent by Academy City arrived. He then stays behind to stop them, while Tōma and Itsuwa chase after Terra to Palais des Papes. Upon arriving, Tōma calls Mikoto to check some news in Academy City. Mikoto informs him about the city sending a cleanup operation to Avignon to deal with some dangerous religious group, but their phone call is cut short when Terra arrives with the C-Document. Dur
Team GROUP captures a blackmarketter for questioning who is later killed by an esper wearing a steel helmet. Etzali investigates the blackmarketter's home but a black ops team arrives. Etzali disguises himself as one of the operators but not before leaving some clues to his team. GROUP learns the blackmarketter sold a weapon to a sniper named Sunazara whose target is Monaka and Accelerator stops the assassination attempt after Awaki teleport him to Monaka's location. GROUP soon learns the assass
While Kazari takes a lost Last Order home, Accelerator arrives at his location and faces Saraku, a teleporter of MEMBER and defeats him after realizing Saraku can only teleport behind his opponents. Elsewhere, MEMBER's leader "The Professor" confronts Teitoku only to be killed by the latter after using his power, Dark Matter. Meanwhile, BLOCK starts their real goal, to shut down the city's surveillance system and help 5000 mercenaries invade the city. However, one of their members is actually Et
Shiage finds the ITEM's hideout being attacked by SCHOOL. Teitoku tries to kill Shiage but is stopped by Rikō Takitsubo with her ability activated by Body Crystal drugs. SCHOOL then leaves after they achieve their mission of disabling Rikō's power. A vengeful Shizuri Mugino orders Rikō to use her ability more. Shiage confiscates the drug and takes her to Aiho Yomikawa for safety. He then confronts Shizuri, who recently killed Frenda for betraying them. As Shizuri chases him, Shiage leads her to
Itsuwa arrives in Academy City and tells Tōma of being assigned as his bodyguard to protect him from Acqua, who wants to kill him for ruining the plans of God's Right Seat. While her fellow Amakusa Catholics observe the two and plan to get them close, Mikoto passes by as she deals with the revelation of Tōma's memory loss. Tōma brings Itsuwa to his dormitory and later finds Index accidentally destroying their bathroom. Itsuwa decides to bring Tōma and Index to a spa located in an underground lev
Tōma is hospitalized, while Itsuwa is still depressed but becomes motivated to fight back after Saiji Tatemiya gave her a stern lecture. The Amakusa Catholics prepare their weapons for another fight against Acqua. They receive information from Orsola Aquinas about Acqua's past and abilities, making them prepared to confront him. The Amakusa Catholics cast a curse on Acqua, but it gets nullified by his Divine Mother ability. They then cast a spell known as "Saint Destroyer" designed specifically
Tōma regains his consciousness and sneaks out of the hospital to aid the Amakusa Catholics' fight against Acqua. He runs into Mikoto on his way and has a deep conversation with her. Meanwhile, Acqua continues to overpower Kaori until the Amakusa Catholics join the battle to aid her. Kaori then discovers Acqua's weakness which could make Saint Destroyer work against him, while Itsuwa learns that he prepared a defensive spell to counter-attack it in their fight earlier. Acqua prepares to launch a
An explosion in Eurotunnel severely damages both the English and French economies, causing heightened tensions between both countries. The British royal family summons Index to determine the cause, with Tōma acting as her guardian. Their flight experience setbacks when Tōma learned about the boarding of a member of the French anti-English terrorist organization that planned to take out England's aerial supply routes. Tōma is detained to prevent him from causing panic among the passengers, while
Tōma and Index arrive in Edinburgh and are taken by Kaori to Buckingham Palace to meet Queen Elizard, First Princess Riméa, Second Princess Carissa, Third Princess Villian, and the Knight Leader. He is introduced to Curtana Original, a sword with power equally aligned to Archangel Michael, and Curtana Second, a replacement currently wielded by Elizard after the original was lost. Elizard dispatches Index, the Knight Leader, Carissa, and Villian to Eurotunnel and instructs Necessarius to determin
Carissa begins mobilizing the Knights of England. Smartvery and her fellow witches collide with the knights near the country's border. Agnese and her fellow battle nuns are confronted by other knights but manage to escape them. While in Eurotunnel, Index confirms the involvement of France magically in the explosion, justifying Carissa's decision to invade the country. Tōma, Oriana, and a wounded Lessar struggle to sneak past the knights until Sherry Cromwell attacks them. Meanwhile, Kaori arrive
Tōma and Floris encounter Villian and are found by the Amakusa Catholics. He continues to find Index and spots Acqua, who recently defeated the Knight Leader, and her carriage. Carissa arrives and attacks them, but Acqua rescues the two and leaves them to Amakusa Catholics boarding the plane. Kaori and Saiji inform Tōma of their plan to overload Curtana Original using the special railway found in the subway under the Buckingham Palace and the witches' flying fortress called "Coven Compass". Late
The witches at Coven Compass begin to launch an attack at Buckingham Palace, while Tōma's allies manage to reach the palace and fight Carissa, but they find themselves at a disadvantage. Meanwhile, Riméa watches them from afar and learns about Carissa's true plan of getting herself to be buried along with the Curtana artifacts once she destroys the United Kingdom's domestic and foreign enemies. She then orders the forces to save her. The Knight Leader and Acqua join Kaori in defeating Carissa, b
GROUP is tasked to eliminate a group called "Spark Signal". Shiage visits Rikō and Saiai Kinuhata in a private room, with the latter informing him later about joining a new team that consisted of defunct members from ITEM, SCHOOL, BLOCK, and MEMBER. Accelerator saves a group of children held hostage by Spark Signal in an underground particle accelerator facility and becomes bothered with the terrorists' demand to disclose all information related to DRAGON. A member of Academy City's Board of Dir
Shiage manages to reach the private room building via helicopter. Accelerator also arrives and subdues the Spark Signal when Shiokishi's bodyguard named Sugitani appears and kills the remaining operatives. He later finds Shiage and a weakened Rikō. Saiai arrives near the building but is suddenly attacked by Stephanie. GROUP learns that every team who wants to learn about DRAGON is eliminated when their mobile hideout is destroyed. Accelerator manages to escape paralyzed but a man who saved his b
While Awaki is unconscious, Accelerator faces off Sugitani and manages to defeat him despite being paralyzed. Etzali continues fighting Tecpatl wielding an original grimoire based on the Aztec calendar until he finally kills him. Meanwhile, Saiai manages to defeat Stephanie despite the lack of nitrogen supply for her ability in the area. She warns Shiage to flee since he is the real target and gets captured by operatives led by the girl in the dress, who revealed about the manhunt on Shiage due
The Russian government declares war on Academy City. In Russia, Shiage and Rikō arrive as the latter's health worsens, while Accelerator and Last Order board a train and encounter three unknown high-powered soldiers with a briefcase. Tōma is followed by Lessar, who attempts to seduce him to get him on the United Kingdom's side. Meanwhile, a fleet boarded by Kaori and the Agnese Forces is attacked by French magicians, but Carissa and the Knight Leader counterattack them. Tōma and Lessar infiltrat
The masked woman confronts Accelerator and introduces herself as Misaka Worst. Meanwhile, Vento summons an ice ship from Biagio's Queen Fleet to attack Fiamma but is defeated instead. Fiamma reveals being consciously connected with Index, who currently rests in London, and mocks Tōma for lying about his memory loss in front of her. He then leaves them with an unconscious Sasha. In a village near the border of the Elizalina Alliance of Independent Nations, Rikō is being taken care of by the local
Accelerator stops Misaka Worst from bleeding as he becomes mentally unstable, while Tōma and Lessar leave the Elizalina Alliance of Independent Nations. Meanwhile, Shiage helps the villagers to fight back the military privateers when he receives unexpected help from Acqua. Elsewhere, Carissa and her British forces continue fighting the French forces when their leader named The Maiden of Versailles arrives. Tōma and Lessar come across Accelerator. Tōma defeats him after he snaps him out of his in
Vasilisa contacts the Pope to discuss their plan of dealing with the current war. Aiwass instructs Hyōka Kazakiri to stop Archangel Gabriel in Russia. Acqua and Shiage manage to free the villagers from the military privateers. He then retreats as Academy City forces close in to secure the village. Shiage and Rikō are being pursued by an Academy City-powered suit but are saved by Accelerator after they reached the Elizalina Alliance of Independent Nations. The trio meets Elizalina, who manages to
Tōma bumps into Sasha at the Star of Bethlehem, while Fiamma orders Archangel Gabriel to retrieve the parchment to complete his plan. Shiage and Rikō find the Kremlin Report and learn that it would be used in the village. Tōma is confused to see Sasha separated from Archangel Gabriel unlike during the Angel Fall incident. The rioting Vaticanians are pacified by the Pope, while Cardinal Pietro Yogdis plans to continue the papal conclave to secure his promotion as the new Pope. The Pope reassures
Back in London, Stiyl struggles to restrain Index while in her John's Pen mode. Elsewhere, Archangel Gabriel and Hyōka continue fighting until the archangel detects the parchment being possessed by Accelerator. Accelerator decides to leave Last Order with Misaka Worst and fights the archangel, while Shiage and Rikō inform the villagers about the Kremlin Report. Meanwhile, Acqua joins the battle against Archangel Gabriel and uses his authority as a member of God's Right Seat to draw much of his T
Hyōka informs Accelerator about the song that Index sang to Last Order during Vento of the Front's attack in Academy City as a method of removing the virus. Shiage continues looking for Rikō but finds Shizuri instead. Shizuri then takes all of the Body Crystal drugs and goes berserk until her body collapses due to overdose. Shiage convinces her to change and reconciles with her. At the Star of Bethlehem, Fiamma attacks Tōma with the combined knowledge of Index's grimoires and his position as a m
Shiage and Shizuri manage to find Rikō when they notice three powered suits dropping off from an Academy City's plane, but they manage to defeat them. Elsewhere, Accelerator obtains the data of Index's song retrieved by Misaka Worst through the Misaka Network and begins to sing it. As he continues to fight Tōma at the Star of Bethlehem, Fiamma summons gigantic golden arms around the world. The leader of the Dawn-colored Sunlight magic cabal named Leivinia Birdway destroys one of them and convinc
Accelerator saves Last Order despite suffering heavy injuries from using magic. Meanwhile, Tōma defeats Fiamma and decides to let him escape. He encounters Mikoto and Misaka #10777 arriving to rescue him but declines them to deal with the Star of Bethlehem's descend. Tōma then encounters Index in her John Pen's mode and apologizes for keeping his memory loss a secret to her. Stiyl contacts Tōma and instructs him to destroy the elevating magical items found in the flying fortress. Archangel Gabri