Chapter Summaries

Misaka Mikoto, Shokuhou Misaki, and Accelerator infiltrated an Academy City research institute to find the Sisters, but the underground facility held a mysterious high school version of Misaka Mikoto. As she began to wake, the group still had not found Last Order.

• Shokuhou Misaki explained that Academy City had built research institutes around the world, and Misaka Mikoto vowed to make those responsible pay.
• Misaka Mikoto hacked the institute’s surveillance while Shokuhou Misaki controlled its staff and learned the layout, though she worried the easy access was a trap.
• The group descended into the underground facility and found Misaka Sisters lying in beds beside combat equipment, but Accelerator could not find Last Order.
• Shokuhou Misaki discovered a tall, high school version of Misaka Mikoto and teased the original about her appearance.
• The High School Version Misaka Mikoto opened her eyes as Shokuhou Misaki stepped back cautiously.

Misaka Mikoto and the others learned that a third-production Misaka Clone called Extra Individual had been created as a Level 4 with a more mature body. Extra Individual revealed that she was earning money by fighting in wars, leaving Misaka Mikoto horrified.

• Extra Individual woke and mocked Misaka Mikoto, explaining that she had been created in the third production.
• Misaka Mikoto grew furious at the thought that the Sisters were being produced and mistreated again, while Extra Individual teased her for being easy to read.
• Extra Individual told Shokuhou Misaki that she was the only third-production Clone and had no serial number, so they could call her Extra Individual.
• Extra Individual said she had taken a part-time job to earn money because the Sisters needed to survive, then revealed that the job was fighting in wars.
• Misaka Mikoto protested that the Sisters could die in war and said she had fought to save them, not to see them fight.

Extra Individual explained that she carried the Misaka Sisters’ accumulated pain and resentment, but did not hate Misaka Mikoto. She insisted that the Sisters had to enter the battlefield to secure their future and seek revenge, leaving Mikoto unable to refute the harsh realities she described.

• Extra Individual challenged Misaka Mikoto’s belief that the Sisters did not resent their suffering and revealed that she felt the Misaka Network’s negative emotions.
• Misaka Mikoto asked whether Extra Individual hated her, and Extra Individual said Mikoto’s efforts to save the Sisters had helped keep her from going mad.
• Misaka Mikoto declared that she would not let Extra Individual go to the battlefield, but Extra Individual explained that Academy City’s makers had offered the Sisters money and ordinary rights in exchange for fighting.
• Extra Individual argued that Mikoto could not protect every Sister from being manufactured and sent to war, and that public sympathy would fade if a world war began.
• Extra Individual said she wanted to distinguish herself in battle to gain a chance at a normal life and to take revenge.

Accelerator found Last Order, but she stabbed him in the heart after Extra Individual used the Misaka Network to spread her hatred and pain to the Sisters. The chapter ended with Misaka Mikoto confronting Extra Individual as Accelerator bled from his wound.

• Extra Individual told Accelerator that Last Order was nearby and led the group through guarded doors to her room.
• Accelerator found Last Order unconscious, removed her helmet and cables, and held her until she woke.
• Last Order recognized Accelerator, then stabbed him in the heart while he shielded her from a suspected attack.
• Extra Individual laughed at Accelerator for leaving Reflection off and completing her revenge so easily.
• Misaka Mikoto grabbed Extra Individual and demanded to know what she had done.
• Extra Individual explained that researchers had used a virus to deprive Last Order of her signal-tower authority, allowing Extra Individual to control the Sisters and transmit her negative emotions through the Misaka Network.

Shokuhou Misaki exposed Extra Individual’s claim that the Sisters wanted revenge as a lie, while Last Order resisted the Upper-Level Signal and begged Accelerator to save her. Her plea roused Accelerator, who began manifesting a halo and white wings.

• Accelerator gave up on living and released Last Order, but she struggled against the virus and insisted she did not want to hate him.
• Shokuhou Misaki accused Extra Individual of controlling Last Order and argued that the Sisters’ positive feelings outweighed their resentment toward Accelerator.
• Extra Individual summoned armed Sisters, but Shokuhou Misaki recognized that the Upper-Level Signal was controlling them rather than expressing their own hatred.
• Extra Individual ordered Last Order to join her, but Last Order resisted and clung to Accelerator, begging him to save her.
• Accelerator heard Last Order’s plea, fought against death, and began glowing as a halo and white wings appeared.

Accelerator, Misaka Mikoto, and Shokuhou Misaki tried to persuade Extra Individual not to send the Sisters into battle, promising to work for their future. Extra Individual challenged their confidence, and an unknown woman spoke as the confrontation reached an impasse.

• Accelerator healed his fatal wound with a Red Potion and demanded that the Sisters decide for themselves whether to fight.
• Shokuhou Misaki realized that Extra Individual had been made an upper-level signal to draw the others into protecting Sisters who chose to go to battle.
• Accelerator, Misaka Mikoto, and Shokuhou Misaki each promised to work toward giving the Sisters a better life.
• Extra Individual argued that effort had not saved the nearly ten thousand Sisters who died in the experiments and battles.
• Misaka Mikoto insisted that their new wish-granting opportunities could change the odds, but Extra Individual called her immature.
• An unknown woman said that some gaps could not be filled by effort.

Othinus appeared before Shokuhou Misaki, Misaka Mikoto, Accelerator, and Thor, identifying the girls’ fused science and magic as a threat. She overwhelmed Accelerator and decided that eliminating the threat might be best, while Misaka Mikoto prepared to resist.

• Othinus appeared and confronted Thor, who stood protectively in front of Shokuhou Misaki.
• Othinus explained that Shokuhou Misaki and Misaka Mikoto’s unusual fusion of Esper abilities and magic made them a serious threat.
• Accelerator attacked Othinus to protect Last Order and the Misaka Sisters, but she caught his wings and pinned him to the ground.
• Othinus considered eliminating Shokuhou Misaki and Misaka Mikoto, leaving Shokuhou terrified for herself and the Misaka Sisters.
• Misaka Mikoto raised her lightning-wreathed spear and refused to surrender, while Othinus warned that they could not defeat her as they were.

Otisnu overwhelmed Misaka Mikoto and Shokuhou Misaki, revealing that she intended to destroy the world to fulfill her wish. Shen Mo arrived to stop her, then casually ascended into a Magic God, leaving Otisnu stunned and ready to hear what he wanted to discuss.

• Otisnu erased lightning and nullified Shokuhou Misaki's powers, then declared she had to destroy the world to fulfill her wish.
• Otisnu tried to kill Shokuhou Misaki, Misaka Mikoto, and the others, but her attacks were blocked by an unseen force.
• Shen Mo arrived with a cat on his shoulder, and Otisnu challenged his status as a mere human.
• Shen Mo chose to become a Magic God on the spot, astonishing Otisnu.
• Shen Mo criticized Otisnu's prejudice about humans and Magic Gods, and Otisnu admitted her mistake before asking what he wanted to discuss.

Shen Mo confronted Othinus and used his World Domain to overwhelm her, revealing that his power surpassed that of a Magic God. He took Othinus away to speak elsewhere, leaving Misaka Mikoto, Shokuhou Misaki, and the others behind.

• Shen Mo told Othinus he would not stop her from killing individuals, but he would prevent her from destroying the world.
• Shen Mo enveloped Othinus in his World Domain, suppressing her powers and making her unable to resist.
• Othinus demanded to know who Shen Mo was and acknowledged that he had defeated her with overwhelming power.
• Shen Mo took Othinus away, while Shokuhou Misaki collapsed from the strain after they vanished.

After Shen Mo brought Othinus back to his shop, he offered to fulfill her wish by becoming the Understander she had always longed for. Othinus accepted his comfort, though she tearfully accused him of taking advantage of her loneliness.

• Misaka Mikoto resolved to become stronger and challenged Extra Individual to fight again.
• Shen Mo returned to his shop with Othinus, the Magic God he had come to recruit as an employee.
• Shen Mo told Othinus that she wanted an Understander because she was lonely, not simply to return to her old world.
• Othinus admitted Shen Mo could become her Understander but said she still needed to confirm it.
• Shen Mo embraced Othinus and comforted her, and she clung to him while crying and calling him a cunning bastard.

Shen Mo made Othinus a permanent employee of the Merchant Guild, and she accepted the role after learning about his goals and abilities. She advised him to introduce competition among players to keep them engaged, but he rejected an excessively cruel approach.

• Shen Mo offered Othinus a permanent contract, and she agreed to remain by his side as his Understander.
• The contract bound Othinus to Shen Mo, while he shared information about himself, the system, and his goal of expanding the Merchant Guild across countless worlds.
• Othinus pledged to help Shen Mo and cited her experience creating a pantheon as an asset to the Guild.
• Othinus began advising Shen Mo on the Guild's development and warned that players might lose interest in grinding monsters.
• Othinus proposed elimination-based competition to pressure the players, but Shen Mo insisted that competition must not turn the Merchant Guild into a bloody slaughterhouse.

Shen Mo and Othinus planned competitive events to keep Merchant Guild players engaged, and he entrusted her with organizing them before preparing to leave. Othinus insisted she would only travel to worlds where Shen Mo was present, and he reassured her that she would remain by his side.

• Othinus agreed that planning should encourage players to feel grateful to the Merchant Guild and suggested intense player-versus-player competitions.
• Shen Mo considered battle royale and Holy Grail War events, while Othinus proposed level requirements and other ways to motivate players.
• Shen Mo asked Othinus to manage event planning and look after the shop while he was away.
• Othinus worried that Shen Mo was leaving her alone, then discovered the chat group he had provided.
• Othinus insisted she would not stay in a world without Shen Mo, and he reassured her that she would travel with him and encouraged her to get along with Ikaros and Hikari.

After leaving to investigate a possible event world, Shen Mo left Othinus in charge of the shop. In the A Certain Magical Index World, Aleister decided to approach the Shop Owner, while Accelerator arrived at the shop seeking power.

• Shen Mo left alone to investigate the next world, and Othinus stayed at the shop with Hikari while thinking about her bond with him.
• After learning that Othinus had joined the Shop Owner, Aleister abandoned his plan to fight the Magic Gods and decided to visit the shop when Shen Mo returned; Aiwass chose to go with him.
• Three days later, Accelerator entered the shop and was startled to find Othinus working as its clerk.
• Accelerator asked whether even a Magic God had been subdued, and Othinus told him that the Shop Owner's power surpassed that of the gods.

Accelerator used his money to buy Jars, hoping to gain the power to protect the girl he cared about. He obtained an Angel profession suited to guarding someone, but immediately decided it was still too weak.

• Accelerator offered Othinus his bank card and learned that the Jars could grant power from endless worlds.
• Accelerator chose the Combat Style Series and opened the ten largest Jars, focusing on the final one.
• The final Jar gave Accelerator the Angel profession, unlocking the Knowledge Vault and Weapon Vault and activating his Beginner Holy Body.
• Accelerator recognized the Angel's ability to become a contracted guardian and said he needed more Jars.
• Shen Mo returned and announced that the next world was about to begin.

Shen Mo returned to Othinus and told Accelerator about a new Limited-Time Event offering a huge prize for its sole winner. Accelerator eagerly chose to participate and continued opening Jars to prepare, while Shen Mo and Othinus moved to a private space.

• Othinus threw herself into Shen Mo's arms, relieved that he had returned, and Shen Mo comforted her.
• Shen Mo warned Accelerator that protecting someone meant staking everything to keep them safe, not treating everyone as a potential enemy.
• Shen Mo announced a Limited-Time Event in which seven volunteers would compete for 300 million Points and the right to trade for fifty Level 4 Chests, with a cheap revival available for participants who died.
• Accelerator immediately signed up and resolved to use his remaining Newbie Benefit to strengthen himself before the event.
• Shen Mo took Othinus to a private space, where she asked what event he had prepared.

Shen Mo explained that the Merchant Guild would host a twenty-one-participant Holy Grail War with Type-Moon’s gods, using Heroic Spirits and Masters as contestants. He rejected Othinus’s idea of farming Trading Points through a disposable middleman, then assigned her to prepare the event details.

• Shen Mo told Othinus that he had negotiated with Type-Moon’s Gaia and Alaya to bring Heroic Spirits and Masters into a Holy Grail War.
• Othinus proposed secretly funding a contestant to trade for Trading Points and then killing them, but Shen Mo said he wanted to earn through players rather than exploit the system.
• Othinus embraced Shen Mo and said the event could give contestants strength and status beyond the competition.
• Shen Mo asked Othinus to complete the remaining event details, and she agreed to work on them.

Shen Mo launched the first Limited-Time Event, the Holy Grail War, and seven Chamber Members quickly claimed its places. As the participants prepared for the battle and its rewards, Shen Mo reviewed the roster and discovered Itachi Uchiha had joined while Sasuke watched.

• Shen Mo announced the Holy Grail War, offering the winner 300 million Points and the right to purchase fifty Level 4 Chests, and seven Chamber Members registered.
• Kanzaki Kaori decided to seek support from her former Amakusa-style companions so she could open more Chests before the event began in three days.
• Shen Mo identified the seven participants as Kanzaki Kaori, Accelerator, Orochimaru, Roger, Garp, Konan, and Itachi Uchiha.
• Sasuke argued with Itachi for signing up after stopping him, then demanded that Itachi win the event and prove himself.
• Shen Mo assessed the varied roster and considered the opportunity to earn a fortune by selling Chests to the Heroic Spirits.

Emiya Kiritsugu summoned Artoria Pendragon for the Holy Grail War, but she revealed that an unknown being had altered the conflict through an agreement with the Counter Force. The group began preparing to offer treasures in exchange for blessings, leaving Artoria drawing the required sacrificial pattern.

• Emiya Kiritsugu summoned a golden-haired girl who identified herself as King Arthur, Artoria Pendragon.
• Artoria told Emiya Kiritsugu that an unknown existence had made an agreement with the Counter Force and sent seven warriors to compete in the Holy Grail War.
• Emiya Kiritsugu questioned Artoria's account but accepted that the altered war was worth investigating.
• Irisviel returned with gold, antiques, Magecraft Noble Phantasms, technological items, and cash for the offering.
• Artoria began drawing a sacrificial pattern on the Stone Tablet according to the instructions in her mind.

Emiya Kiritsugu chose weapons for his blessing and received hundreds of Level 1 Chests. He opened them to find weapons and enhancements that made him a highly skilled fighter, including a belt that produced afterimages.

• An eye-shaped mark appeared on the Stone Tablet, and a terrifying consciousness asked Emiya Kiritsugu to choose a blessing series.
• Emiya Kiritsugu chose weapons, and the design produced two hundred smaller jars and eighteen larger ones.
• Artoria said she could not compare the presence to anything magical or legendary she had encountered, while Emiya Kiritsugu warned that the Holy Grail War had become more complicated.
• Emiya Kiritsugu opened the jars and discovered they contained weapons, physical enhancements, and weapon-proficiency enhancements.
• Emiya Kiritsugu demonstrated his new skill with an Eastern ancient sword and darts, then showed Irisviel a belt that created afterimages.

Emiya Kiritsugu discovered that the larger chests contained powerful weapons from beyond the world and began seeking wealth to buy more. Meanwhile, Shen Mo noticed that the altered Holy Grail War had summoned Ruler, Joan of Arc, who prepared to judge the conflict.

• Emiya Kiritsugu assembled a ninja tool that created a Rasengan and blasted through a wall, then concluded the larger chests held weapons from an unknown power.
• Artoria resolved to obtain the Holy Grail and change her country's fate, while Kiritsugu left her behind to ask his father-in-law for wealth.
• Kaineth investigated reports of the Interferer, Tokiomi learned of the change through Kirei, and Ryunosuke bought only a few Level 1 Chests.
• Shen Mo watched the Masters and Heroic Spirits and discovered that Joan of Arc had appeared as the eighth Heroic Spirit, Ruler.
• Joan of Arc prayed, examined her fourteen Command Spells, and considered the warning she had received about an unknown being and warriors from another world.