Chapter Summaries

Kamisato Kashiwazaki and Stiyl realized they had no way to fight the powerful First One, while Mikoto joined Kamijou Touma and Index to explain why the Church of Necessary Evil was pursuing Index. The chapter ended with Mikoto revealing that the Church believed Index’s memories would overwhelm her, though that belief was false.

• Kamisato Kashiwazaki told Stiyl that the woman who defeated him was the legendary Level 5 First One, A Certain Scientific Railgun.
• Kamisato Kashiwazaki said the Church of Necessary Evil’s suspected ninth Saint was likely Mikoto’s friend, and she and Stiyl admitted they could not overcome the First One.
• Kamijou Touma took Index to a restaurant after mishaps ruined his attempts to make breakfast, where a Misaka Sister joined them.
• Mikoto arrived and told Index and Kamijou Touma that the two people pursuing Index belonged to the Church of Necessary Evil.
• Mikoto explained that the Church believed Index had Perfect Memory and needed her brain wiped yearly, but that belief was untrue.

Shokuhou tested the Domination Armor while she and Mikoto discussed Academy City’s coming turmoil and Kakine’s resentment over his new fourth-place ranking. At home, Touma tried to find what had happened to Index, but she spoke of going to the end of hell, and he stopped her from leaving.

• Shokuhou used the Domination Armor to control her body as Mikoto explained its limits and warned her not to neglect exercise.
• Mikoto and Shokuhou discussed Kakine’s dissatisfaction with falling to fourth place and whether he might challenge the higher-ranked Level 5s.
• Touma tried to examine Index for clues about what had happened to her, but she resisted and questioned their relationship.
• Index said she would head to the end of hell, and Touma blocked the door and told her she was not allowed to go either.

Kamijou Touma stopped Index from sacrificing herself and spoke with Mikoto about how she and the Sisters could share bodies and consciousness. In another world, a visit to Shokuhou Misaki’s hotel room exposed her and short-haired Mikoto holding hands, leaving Dolly, Kuroko, and the others in confusion; Shokuhou then brought Mikoto into the observation group.

• Kamijou Touma told Index he would not let her go to hell, and Mikoto explained how she and the Sisters could transfer their consciousnesses between bodies.
• Keisatsu Kanketsu, Dolly, and Shirai Kuroko entered Shokuhou Misaki’s room and found Shokuhou and short-haired Mikoto holding hands on the bed.
• Kuroko clung to Mikoto and accused her of abandoning her, while Dolly tearfully questioned Shokuhou and Keisatsu Kanketsu joked about an elopement.
• Shokuhou used her remote to calm the room, then insisted Dolly had arrived at the right time and placed an Otherworld Observation Device card on Mikoto’s forehead.
• Dolly linked arms with Shokuhou, leaving short-haired Mikoto bewildered and mentally unraveling.

Shokuhou Misaki brought Dolly and Short-haired Mikoto into the dream space to observe another world, where they saw intimate scenes involving their other-world counterparts. The observation then showed Kamijou Touma meeting Index, leaving Short-haired Mikoto and Shokuhou shaken by the different timeline.

• Keisatsu Kanketsu left after noticing the group’s secret, and Shokuhou Misaki disabled the camera she had planted.
• Shokuhou Misaki explained that they would observe another world, then used a card to guide Short-haired Mikoto and Dolly into the dream space with her.
• Dolly saw Long-haired Mikoto and Shokuhou practicing together and realized that the other Mikoto resembled a grown-up version of herself.
• Short-haired Mikoto became jealous as the dream showed Long-haired Mikoto and Shokuhou cuddling together.
• The dream shifted to Kamijou Touma telling Index that he would not let her go, and Short-haired Mikoto recognized it as the beginning of their bond in another timeline.

Touma learned why Index could remain safely in Academy City and wondered whether her Grimoire restriction was inside her mouth. Meanwhile, Shokuhou Misaki admitted that she felt distant from Mikoto despite their closeness, leaving their relationship unresolved.

• Kamisato Kashiwazaki explained that people seeking Index’s Grimoires might use cruel methods, but Academy City’s status as Science Side territory limited magicians’ ability to act against her.
• Touma realized that espers could not use magic without harming themselves, making Index safer in Academy City, while Index sensed sadness and emptiness in Mikoto as she left.
• Touma speculated that Index’s restriction might be inside her body, then clarified that he meant inside her mouth; Kamisato Kashiwazaki challenged his suggestion.
• Shokuhou Misaki reviewed Keisatsu Kanketsu’s gathered information and said Mikoto kept her feelings hidden, making Shokuhou feel distant from her despite their connection.

Kamisato Kashiwazaki learned that Index’s collar was a Church-imposed restriction, then the story shifted to Mikoto protecting Arisa Meigo from thugs and displaying her Railgun. Aleister and Aiwass watched the events as Aiwass reflected on its sense of belonging in the world.

• Kamisato Kashiwazaki told Stiyl that Index wore a collar likely designed to trigger a bomb after a year, and that her supposed memory problem was a Church-imposed restriction.
• Director Misaka began a new episode featuring Arisa Meigo, an online singer who was accosted by delinquents while writing music.
• Mikoto arrived and protected Arisa, then explained that she was tracking criminals who had stolen and modified Academy City security robots.
• Mikoto stopped the thugs’ attacks with her Electromagnetic Force and fired a Railgun that pierced and overturned their tank.
• Mikoto led Arisa away before Judgment arrived, while Aleister watched and Aiwass described feeling a sense of belonging in the world.

Aleister and Aiwass discussed how Magic Gods had reshaped the world and warned that powerful beings were turning their attention toward Academy City. Meanwhile, Mikoto connected with Elisa over music and reassured her that she had friends; Shokuhou Misaki then joined them.

• Aleister explained that Magic Gods had altered the world by creating overlapping phases, and said their presence had brought new dangers as they began probing Academy City.
• Mikoto and Arisa Meigo met Elisa at a restaurant, where Elisa discussed writing a midsummer song and Mikoto suggested the Summer Triangle.
• Elisa asked Mikoto to form a band with her, and Arisa encouraged Mikoto to debut alongside them.
• Elisa shared that she had no memories or family and relied on music, prompting Mikoto to tell her she was not alone and still had Mikoto and friends.
• Shokuhou Misaki arrived, introduced herself to Elisa as Mikoto's good friend, and sat close beside Mikoto.

Shokuhou Misaki joined Arisa Meigo and Mikoto’s conversation about forming a band, then learned that Arisa had lost her memories and appeared after the Miracle of the 88. Shokuhou began to suspect that Arisa’s arrival was connected to a world where the Endymion incident had never happened.

• Arisa Meigo invited Shokuhou Misaki to join her and Mikoto’s band, leaving Shokuhou bewildered.
• Mikoto encouraged Shokuhou to make her debut as an idol, and Shokuhou wondered whether she could sing.
• Shokuhou told Mikoto that Arisa seemed lost because she had no memories or past.
• Shokuhou questioned Keisatsu Kanketsu about Arisa and learned that she appeared after a spacecraft accident in which all eighty-eight people survived.
• Shokuhou noticed the Space Elevator under construction and wondered whether Arisa came from a world where the Endymion incident never occurred.

Touma and Mikoto tried to remove Index’s collar, but the attempt triggered Index’s dangerous defense spell, St. George’s Sanctuary. Mikoto countered its attack with Laevateinn, leaving Kamisato Kashiwazaki stunned by her power.

• Mikoto arrived to help Touma remove Index’s collar, while Stiyl remained incapacitated.
• Touma touched the symbol in Index’s throat, triggering a blast that knocked him away and caused Index to faint.
• Index floated in the air with glowing red eyes and unleashed beams, while Mikoto blocked them with an iron-sand wall.
• Index’s defenses activated St. George’s Sanctuary, and Mikoto explained that she could interfere with higher-dimensional space to counter it.
• Mikoto fired Laevateinn, an esper beam that matched Index’s magical attack, astonishing Kamisato Kashiwazaki.

Mikoto used the Imoutos to trap Index and countered her Christian and Norse myth-based attacks with a scientific imitation of conceptual magic. Index recalibrated and prepared a new assault based on traditions Mikoto’s lightning could not easily counter.

• Mikoto revealed that she had used the Imoutos’ power to distort space and trap the intruders inside an isolated area.
• Index summoned Freyr’s Sword, and Mikoto explained its connection to Laevateinn before countering it with a lightning-based conceptual equivalent.
• Touma questioned how Mikoto could use magic, while Mikoto left the mechanism unexplained and the viewers debated how her counter worked.
• After Mikoto defused Index’s attacks, Index excluded Christianity-related techniques and selected Aztec, voodoo, Shinto, and Taoist attacks for her next assault.

Mikoto staged a simulated neutron-star merger to unleash a Gamma Ray Burst at Index, while Touma rushed to reach her and stop the attack. Index intercepted the beam and prepared an Aztec sorcery countermeasure as Touma saw her remove her nun’s habit.

• Mikoto used an imitation Dirac String and a wormhole to project radiation from neutron stars into the sky, then staged their merger.
• Mikoto explained that she was exploring how magic could let people on Earth affect the universe, while privately using the spectacle to entertain viewers and lay groundwork.
• Mikoto prompted Touma to notice that Index was focused on the sky, and he charged toward Index hoping to stop the attack with his right hand.
• Mikoto fired the Gamma Ray Burst she called Genesis, and Index intercepted it.
• Index identified the attack as originating from a Star Body and prepared to counter it with Aztec sorcery after tearing off the safety pins of her nun’s habit.

Mikoto used the Lightning Giant to overpower Index’s defenses, allowing Touma to dispel the magic controlling her. After Index regained consciousness and attacked Touma over their compromising position, Mikoto reflected on her failures and let the viewers build a story around her cryptic remarks.

• Mikoto created a Lightning Giant with ten cores arranged to symbolize the Kabbalah Tree of Life, and it crushed Index’s pillar of light.
• Touma reached Index and touched her with his right hand, dispelling the force controlling her as the Misaka Sisters withdrew.
• Kamisato Kashiwazaki asked Mikoto who she was, and Mikoto called herself Misaka Mikoto, Railgun, and Uncharted Territory.
• Index woke beneath Touma, realized she was naked, and struck him after he insisted it was a misunderstanding.
• Mikoto told Kamisato she had repeatedly failed to save certain things, while privately planning to let the viewers invent an epic explanation for her past.

Kamisato Kashiwazaki revealed that Arisa Meigo might become the ninth Saint, while Kamijou Touma recognized her from another world. Short-haired Mikoto watched her powerful counterpart and wondered about their differences before the story shifted to the next morning, where Kashiwazaki began explaining Arisa’s special identity.

• Kamisato Kashiwazaki told Touma that Arisa Meigo might be recognized as the ninth Saint and could eventually surpass her.
• Kamijou Touma recognized Arisa Meigo’s name and said he knew a little about her.
• Short-haired Mikoto failed to imitate her counterpart’s most advanced abilities and felt jealous of her close friendship with Arisa.
• Dolly said that Long-haired Mikoto’s heart had never smiled, prompting Short-haired Mikoto to wonder whether her counterpart was really Dolly or a Misaka Sister.
• Long-haired Mikoto’s episode ended after drawing in its audience, and the story moved toward the Endymion arc.
• The next morning, Kamisato Kashiwazaki explained Arisa Meigo’s potential as a Saint to Touma and Index while a bandaged Stiyl stood with them.

Kamisato Kashiwazaki and Stiyl explained that the world's disappearance outside Academy City had made the Magic Side fear the Science Side and put Arisa Meigo at risk. As Elisa pursued an idol audition, Mikoto agreed to join her, giving the group a way to stay close and protect her.

• Kamisato Kashiwazaki and Stiyl told Touma that the world outside Academy City had once vanished, leading magicians to suspect Academy City could destroy the Magic Side.
• Touma resolved to protect Arisa Meigo, while Kamisato Kashiwazaki said their objective was to deal with the abnormal circumstances surrounding her.
• Stiyl and Kamisato Kashiwazaki watched Elisa and discussed how her undetectable power and the Magic Side's suspicions made the situation difficult to handle.
• Elisa showed Mikoto a Star Rail Gate Company idol audition brochure and invited her to apply together.
• Mikoto agreed to join Elisa, intending to stay close and protect her.

Mikoto, Arisa Meigo, and Kuroko discussed the kidnapping of Academy City's security robots before signing up to become idols. Their registrations were quickly accepted, and both Mikoto and Arisa Meigo were scheduled for auditions that night.

• Kuroko joined Mikoto and Arisa Meigo, then explained that Judgment and Anti-Skill were investigating a rise in undocumented visitors and stolen security robots.
• Arisa Meigo recalled encountering an armored vehicle, while Mikoto described how security robots could combine into giants and warned that outside equipment or espers could make them dangerous.
• Mikoto invited Kuroko to get milk tea, and Arisa Meigo completed her online registration for the idol audition.
• Arisa Meigo received an interview opportunity for that night, and Mikoto also registered and was assigned an audition that evening.
• Arisa Meigo panicked at first, then regained her composure and resolved to overcome the challenge by singing.

Mikoto joined Arisa Meigo’s idol audition plans and performed “Scarborough Fair” at the preliminary audition, stunning the audience. Two figures from the Magic Side watched and warned that Academy City was more complicated than they imagined, with a Ninth Saint guarding Mikoto.

• Mikoto invited Uiharu and Saten to meet Arisa Meigo, and Saten excitedly told the group about the urban legend surrounding Arisa’s music.
• Mikoto agreed to audition alongside Arisa, while Kuroko noticed that Arisa was calling Mikoto by her given name.
• Mikoto and her friends arrived at the crowded audition venue, where contestants waited nervously for their turns.
• Mikoto adjusted her voice and sang “Scarborough Fair,” captivating the audience and impressing Arisa with her skill.
• Tsuchimikado Motoharu and an unseen companion discussed Mikoto’s song and warned the Magic Side that the Ninth Saint guarding her made interference hopeless.

Mikoto stunned a mall audition with her singing and was invited, along with Arisa Meigo, to audition for a performance tied to the Endymion space elevator. Kuroko failed her audition and was left mourning her lost chance to perform beside Mikoto.

• Tsuchimikado Motoharu said that Academy City's The First One was involved in an unexplained event that altered reality, though he did not know the details.
• Mikoto sang at the mall audition and won over the crowd, while Original Shokuhou speculated about the experiences behind her apparent maturity.
• Arisa Meigo, Saten Ruiko, and Chunibyo Shirai congratulated Mikoto, while Kuroko went to audition and was eliminated after singing poorly.
• A Star Rail Gate Company manager invited Mikoto and Arisa to audition the next day as potential divas representing the Endymion space elevator.
• Kuroko resolved to become Mikoto's fan and monopolize her handshake tickets, but Mikoto shocked her after she blurted out the thought.

Stiyl recruited Kamijou Touma to protect Arisa Meigo and help contain a brewing conflict between the Science Side and Magic Side. The story then returned to Mikoto’s dormitory, where Shokuhou teased her about her figure and Mikoto insisted she had never cheated to change it.

• Stiyl introduced himself to Kamijou Touma, who distrusted him despite learning that Stiyl had come to thank him for saving Index.
• Stiyl asked Touma to help investigate threats around the ninth Saint, Arisa Meigo, because Touma’s ties to both sides could prevent the incident from escalating.
• Stiyl explained that Touma should protect Arisa and stop troublemakers from either side, while Index stayed with him.
• Mikoto returned to the dormitory, where Shokuhou had waited with cake and Dolly suggested they could get along.
• Mikoto explained that she could use electricity to burn fat but could not selectively slim a particular area, then denied cheating to alter her figure.

Shokuhou and Mikoto prepared to watch a performance, then visited Endymion and discussed its magical significance and the danger of its power. They reunited with their friends at the underground mall and began the trip toward the Space Elevator.

• Original Shokuhou and Short-haired Mikoto reluctantly agreed to cooperate on a method for changing their figures after Dolly compared them with their other selves.
• Long-haired Mikoto got dressed up while Shokuhou prepared to accompany her to watch her performance.
• Shokuhou and Mikoto examined Endymion, and Mikoto explained that its magical symbolism could make it a dangerous weapon if combined with Arisa Meigo's power.
• Shokuhou suggested that Endymion was a wedding sanctuary for Moon Goddess Nana, and Mikoto, Shokuhou, Elisa, Kuroko, Saten, and Uiharu gathered together.
• The group entered Endymion's underground mall and learned that a dedicated subway line connected it to the Space Elevator.

Kamijou Touma, Index, Nunotaba Shinobu, and Accelerator investigated Endymion’s underground mall while Academy City prepared to support them. Their investigation was interrupted when Index discovered a magical Stone Giant created by Shirley Cromwell, leaving Accelerator newly interested in the threat.

• Mikoto showed Saten Ruiko, Uiharu, and Arisa Meigo around Endymion’s underground mall and explained that Academy City planned a space district.
• Accelerator met Kamijou Touma and Index at a restaurant and questioned Touma about his power.
• Nunotaba Shinobu arrived with Index and explained that the Chairman had sent her and Accelerator to assist Touma.
• Index sensed the approaching danger, and Nunotaba confirmed that an evacuation had begun.
• Index identified an eye in the mall wall as a Stone Giant created through magic, and Touma suspected Shirley Cromwell was behind it.
• Accelerator found the magical construct difficult to analyze and became more alert as Index dismissed its crude imitation of an angel.