Recaps

Li Yu approached Shokuhou Misaki, demonstrated that her Mental Out could not affect him, and gave her knowledge and a breathing technique from another world. As Kamijou Touma’s tests reached Level 4, the researchers became excited by the enhancement medicine’s potential.

• Li Yu told Shokuhou Misaki that his medicine could improve her athletic ability and prevent weight gain, then demonstrated that he could repel her Mental Out.
• Li Yu connected to Shokuhou Misaki’s mind, read her thoughts, and told her that he came from another world.
• Li Yu gave Shokuhou Misaki information about other worlds and a breathing technique, which she immediately tried and found improved her physical condition.
• Li Yu told Shokuhou Misaki that he hoped she would become one of his girlfriends, while she doubted his explanation.
• Kamijou Touma’s tests reached Level 4, prompting the researchers to see the enhancement medicine as strategically valuable.

Kamijou Touma’s new strength drew the researchers’ attention, and Li Yu began training him in combat so he could control it. After Li Yu knocked him down and gave him martial techniques, Kamijou prepared to try again with the breathing method he had learned earlier.

• Kamijou Touma struck the strength-testing machine hard enough to reach the Level 4 standard, prompting researchers to take his blood and examine him.
• Shokuhou Misaki considered practicing Li Yu’s breathing technique to improve her physical fitness.
• Li Yu challenged Kamijou Touma to a hand-to-hand fight, and Kamijou agreed after Li Yu offered to pay for his meals if he could hurt him.
• Kamijou Touma charged Li Yu, who flicked him flying and then passed martial techniques directly into his mind.
• Li Yu threw Kamijou Touma down again, then reminded him to combine the techniques with the breathing method he had learned three days earlier.
• Kamijou Touma got up, regulated his breathing, and prepared to face Li Yu again.

Li Yu trained Kamijou Touma in martial arts, then had him fight Misaka Mikoto to test his ability. Touma erased her esper attacks and nearly struck her, leaving Kuroko asking how he had defeated her.

• Kamijou Touma practiced martial arts against Li Yu and began using the techniques Li Yu had taught him.
• Li Yu phased into a dimensional space, but Touma's punch dispelled the ability; Li Yu then challenged him to test his strength against Misaka Mikoto.
• Misaka Mikoto attacked Touma with electricity and iron sand, but he erased each supernatural attack and rushed into close range.
• Touma stopped his fist just before hitting Misaka Mikoto, and Li Yu explained to Kuroko that Touma was the natural nemesis of every esper.

Li Yu explained Kamijou Touma’s power to Kuroko and gave her his contact information, drawing Shokuhou Misaki’s interest as well. After Li Yu and Kamijou left Tokiwadai, Academy City’s dark side ambushed them, but Li Yu disabled the attackers before Kamijou could intervene.

• Li Yu told Kuroko that Kamijou’s right hand could erase supernatural abilities and that his speed made him difficult to counter.
• Kuroko asked about Li Yu’s ability, and he said it involved both space and time before giving her his contact information.
• Shokuhou Misaki recorded Li Yu’s contact information while controlling the nearby students, and Li Yu ended the test and left with Kamijou.
• Research institutions obtained Kamijou’s test results and sent Academy City’s dark side to abduct him.
• Li Yu warned Kamijou not to intervene, then shattered the attackers’ equipment and bones as they lay in ambush.

Li Yu rescued Index from the balcony of Kamijou Touma's dorm and explained that she was being hunted because of the knowledge in her mind and a collar that periodically erased her memories. He offered to examine her and remove the collar, while secretly redirecting Kanzaki Kaori and a delinquent boy toward Academy City's approaching dark-side members.

• Li Yu carried the unconscious Index inside and revived her with a bottle of Red Potion as Kamijou Touma learned that magic and other worlds were real.
• Index thanked Li Yu, then grew wary when he identified her as the Index Librorum Prohibitorum and revealed that she was being hunted and had lost her memories.
• Li Yu explained that the English Puritan Church had placed a collar on Index and erased her memories regularly, and he pointed out that a tracking spell might be helping her pursuers follow her.
• Index questioned whether Li Yu could use magic, and he demonstrated unfamiliar Magic Arrays before offering to examine her and remove the collar.
• Li Yu told Index that he came from another world, then secretly transferred Kanzaki Kaori and the delinquent boy toward the dark-side members approaching the dorm.

Li Yu restored Index’s memories, removed her collar, and copied her grimoire knowledge while improving her Automatic Library. He then learned from Aleister who had been watching Kamijou Touma and used spatial power to kill the people on Aleister’s list, triggering alarms across Academy City.

• Kanzaki Kaori and Stiyl Magnus were surrounded by armed operatives and began fighting them.
• Li Yu removed Index’s collar, restored her memories, copied her grimoire knowledge, and modified her Automatic Library, causing her to faint.
• Li Yu told Kamijou Touma that Index’s grimoires were his payment and confirmed Touma had been watched; he then sent Index to his room.
• Li Yu spoke with Aleister, who sent him a list of Kihara members and other people involved in the attack.
• Li Yu used spatial power to target everyone on the list, killing them and setting off alarms throughout Academy City.

Li Yu captured Mugino Shizuri and the other ITEM members after they tried to break into his laboratory, then began sorting through valuable research documents. As Misaka Mikoto and Kuroko planned to meet Li Yu the next day, Saten Ruiko anxiously awaited a chance to gain power, while Li Yu returned to find Index still asleep.

• Li Yu trapped Mugino Shizuri and the other ITEM members in a room at the laboratory, intending to use them for experiments.
• Mugino Shizuri accused the group’s mission of being a trap, while Takitsubo Rikou urged everyone to wait.
• Li Yu gathered research documents from laboratories linked to the Kihara faction as Academy City's network filled with news of the attacks.
• Misaka Mikoto told Kuroko they would meet Li Yu with Ruiko the next day, then electrocuted Kuroko after she jumped onto her.
• Saten Ruiko anxiously anticipated taking part in a way to gain power comparable to an esper’s.
• Li Yu returned to his dorm room and found Index still asleep.

Li Yu learned that Index had recovered her memories and agreed to take her to his world after she chose to leave the Anglican Church behind. After promising Kamijou Touma a future visit to his world, Li Yu took Index to his laboratory to handle a message from Kuroko.

• Li Yu told Kamijou Touma he could return to his own world at any time and agreed to take him there someday, but said he had to wait.
• Index woke with her memories restored, thanked Li Yu, and chose to go with him rather than contact Kanzaki Kaori and Stiyl Magnus.
• Li Yu agreed to take Index to his world after a few days and described the food-filled Gourmet World, which excited her.
• Index ate a large meal, then chose to accompany Li Yu when he received a message from Kuroko.
• Li Yu sent Kamijou Touma the key to his room and transferred himself and Index to his laboratory, where he remembered the imprisoned ITEM group.

Li Yu brought Index to see the imprisoned ITEM members, then taught Kuroko, Misaka Mikoto, Saten Ruiko, and Uiharu Kazari a breathing method to strengthen their bodies while the enhancement agent was unavailable. He promised that the method could also improve Ruiko and Uiharu’s esper abilities, leaving Ruiko eager to train.

• Li Yu showed Index the detained ITEM members, explained they had tried to steal something, and left them sealed in the research institute with food and water.
• Kuroko arrived with Ruiko, Uiharu, and Misaka Mikoto, and Li Yu led them into the otherwise empty institute.
• Kuroko said that she and Misaka also wanted to improve their bodies, so Li Yu began teaching all four a breathing method instead of giving them the unavailable enhancement agent.
• Li Yu told Ruiko that her esper ability could become powerful and promised that the breathing method might improve it, prompting her to resolve to train intensely.
• Index recognized that Li Yu’s method was incomplete, and Li Yu explained that he had omitted the swordsmanship portion because the girls did not need it.

Li Yu told Misaka Mikoto and the others about the coming connection between worlds, then tested whether Academy City’s espers could use magic from his world. As ITEM and Index tried his meditation method, Li Yu spotted Kanzaki Kaori and Stiyl Magnus searching his dorm for Index and sent them a message.

• Li Yu admitted to Misaka Mikoto and the others that he came from another world and explained that their worlds would eventually connect, urging them to practice his breathing method.
• Li Yu asked ITEM to test his world’s magic and gave the four members meditation manuals; Index also tried the method after realizing it might let her store magic power.
• Li Yu used Aerial Control to observe Academy City and found Kanzaki Kaori and Stiyl Magnus searching his dorm for Index.
• Li Yu wrote a message and transmitted it to Kanzaki Kaori and Stiyl Magnus.

Li Yu took Index and the ITEM members to experiment with a meditation method that could give them magical power, while Kanzaki Kaori and Stiyl Magnus learned that Index had been taken. As the ITEM members began meditating, Li Yu discovered their magic power seemed to develop attributes linked to their esper abilities and wondered whether Academy City's 2.3 million espers could learn magic.

• Kanzaki Kaori found Li Yu's message saying he had taken Index, and she and Stiyl Magnus rushed to report it to the Anglican Church.
• Index told Li Yu she had gained magical power through meditation, and he said he would take her to attempt something related to the Third Magic that could grant unlimited magical power.
• Li Yu admitted to Mugino Shizuri and the other ITEM members that he wanted them to test meditation, refused to let them leave, and forced them to choose between cooperating or being controlled.
• Takitsubo Rikou entered meditation first, prompting Mugino Shizuri, Frenda Seivelun, and Kinuhata Saiai to try meditating as well.
• Li Yu observed magical power forming in the girls and sensed that Mugino Shizuri's had a lightning attribute, leading him to wonder whether Academy City's espers could learn magic tied to their abilities.

Li Yu brought the ITEM group from Academy City to his world after their meditation awakened mana, then arranged for them to study magic at Otherworld Academy. Mugino Shizuri questioned the plan, and the four appeared unwilling to be kept there.

• Li Yu confirmed that the ITEM group had gained power through meditation and transported them back to the windowless room.
• Li Yu asked Aleister to spread the Breathing Method throughout Academy City, and Aleister agreed.
• Li Yu reunited with Index and the ITEM group in his world and took them to Boundary University.
• Principal Hu agreed to enroll Mugino Shizuri and the others at Otherworld Academy while Li Yu planned for Pandora to help Index.
• Mugino Shizuri asked if Li Yu had brought them there just to study, and Li Yu told them they would be staying for some time.

Li Yu arranged support for the four espers he had brought from Academy City and explained their potential to Principal Hu. He then took Index to meet Hestia, who agreed to let her stay with her.

• Mugino Shizuri asked Li Yu how to contact him, and Principal Hu arranged university passes and funds for the four espers.
• Li Yu told Principal Hu that Academy City had 2.3 million people with developed esper abilities who could learn magic, and admitted that the espers had attacked him before he brought them back.
• Li Yu explained that Index had recorded 103,000 magic books, and Principal Hu welcomed her and supported arranging for Pandora to provide her with abundant mana.
• Li Yu obtained identification documents for Index and took her to the library, where Heroic Spirits were working among the magic arrays on the sealed third floor.
• Li Yu introduced Index to Hestia and asked her to take Index in, and Hestia agreed.

Li Yu brought Index to Hestia and discussed rebuilding the Hestia Familia in the dungeon world with Bell. He then checked on Pandora, who had nearly absorbed the Root and discovered a dangerous universe beyond a sealed passage; Li Yu recognized it as the world of the Astral Express and Paths.

• Li Yu introduced Index and her 103,000 recorded grimoires to Hestia, who agreed to look after her while postponing Falna and other plans for her.
• Li Yu proposed rebuilding the Hestia Familia in the dungeon world, and Hestia agreed to return with Bell.
• Li Yu visited Pandora in the Type-Moon world and asked her to help Index complete the Third Magic, which Pandora readily accepted.
• Pandora explained that the world beyond the passage had universe-level powerhouses, rule-based Paths, and beings capable of destroying star systems.
• Li Yu asked whether the world had the Astral Express and Paths, and Pandora asked him to explain what he knew about it.

After bringing Li Yu back from A Certain Magical Index, Pandora began taking control of that dangerous world and promised to handle Index’s disappearance. Li Yu headed to KonoSuba World, where Asuna and the Special Class students were preparing to assault the Demon King’s Castle, while Index’s friends searched for her in Academy City.

• Pandora reinforced the seal on the A Certain Magical Index world, returned Li Yu to their world, and began spreading her will through it to take control.
• Li Yu read reports about Boundary Island’s ascent and new role as a restricted checkpoint, then set off for KonoSuba World.
• Kanzaki Kaori and Stiyl Magnus reported Index missing, and Laura Stuart discovered that her connection to Index had been severed.
• Laura questioned Aleister, who admitted someone had taken Index and said he could not stop them, then ordered Kanzaki and Stiyl to continue searching.
• Li Yu arrived in KonoSuba World and found Asuna and the Special Class students camped near the Demon King’s Castle, preparing for their final assault after a battle that left some students injured.

After Li Yu returned to the camp, he learned that more than thirty juniors had been injured and agreed to support the team’s final assault on the Demon King. Asuna prepared to notify the kingdom, while Li Yu revealed that his latest world remained unfinished and might require another visit.

• Mahiru Shiina healed the injured juniors, and Asuna proposed that every team bring another team along to keep them safe.
• Li Yu arrived, frightened Aqua with his God Slayer aura, and learned that the juniors had been badly hurt after encountering an elite squad.
• Li Yu said his work was finished and that Boundary Island had changed dramatically, prompting Xia Yu to urge everyone to hurry home.
• Asuna ordered the team to launch its final assault on the Demon King the next day and to notify the kingdom.
• Asuna asked about Li Yu’s gains, and he said he had brought back 103,000 grimoires but might return to the unfinished world because Pandora had dealings there.

Li Yu explained the grimoires he brought back and told Bell to return to his world to establish the Hestia Familia. After Yukino and Kato refused to spar with him, Li Yu explained that reaching the tenth rank required condensing rules tied to one’s own attributes.

• Asuna teased Li Yu about bringing back 103,000 grimoires, and he explained that they had been recorded in Index’s memory.
• Li Yu told Bell to return to his world after the current events and establish the Hestia Familia with Hestia’s help, and Bell agreed.
• Li Yu invited Yukino Yukinoshita to spar, but she refused, and Kato Megumi also declined when he turned to her.
• After everyone ate, Li Yu told the group that breaking through to the tenth rank required focusing on their own attributes and condensing rules, which Yukino compared to forming a Godhead.

Li Yu left Asuna's group to visit the celestial realm while they led an assault on the Demon King's Army, with Asuna opening the battle using a coordinated magical barrage. The enemy's strongest fighters appeared after the barrage had killed many demons.

• Li Yu explained that he hoped to gain a causality seed from the Path of the Hunt in Honkai: Star Rail, then left Asuna's group to visit the celestial realm instead of joining their battle.
• Asuna told Yukino that the campaign was their trial and led the group toward the Demon King's Castle as the human kingdom launched its own offensive.
• Xia Yu reported that the Demon King's forces were ahead, and Asuna ordered the group to begin with a magical barrage.
• The class members and younger students fired spells at the approaching army, while Kazuma knocked Megumin unconscious to stop her from disrupting their formation.
• Asuna's group killed many demons, and the Demon King's strongest fighters finally appeared on the battlefield.

Li Yu visited the Heavenly Realm to arrange cooperation with its goddesses, who agreed to connect their followers with his world and eagerly accepted his invitation to visit. He returned to the battlefield and helped Asuna's group kill the Demon King, ending the campaign.

• Asuna led the charge against the Demon King's forces while Ais, Arcueid, and the others engaged the Demon King and his army.
• Li Yu arrived in the Heavenly Realm, where his God Slayer aura frightened the goddesses until Eris recognized him and helped them speak with him.
• Li Yu discussed a formal agreement with the goddesses, who agreed to cooperate and welcomed the chance to visit his world.
• Eris promised to arrange the divine decrees and notify Aqua before asking Li Yu to take her to his world.
• Li Yu returned to the battlefield and froze the Demon King in place, allowing Yukino to behead him as Asuna's group attacked and Arcueid melted him.

After the Demon King was defeated, Li Yu’s group returned through the spatial passage, while Aqua negotiated her return to Heaven by delivering a warning to the Axis Church. The passage remained open, and Li Yu arranged for Kazuma and his companions to join Caiye’s school.

• Asuna’s group searched the Demon King’s Castle for valuable items before Li Yu teleported everyone back, leaving Kazuma’s group behind because they arrived too late.
• Eris told Aqua she had to warn the Axis Church about cooperation between worlds before she could return to Heaven, and Aqua agreed after Eris unsealed her power.
• Aqua issued a divine decree to the Axis Church, returned to Heaven, and left Kazuma and his companions behind; Eris then sent them to the starting town.
• Li Yu and the others crossed the spatial passage with the goddesses, and Pandora took Eris and the other goddesses away upon their arrival.
• Li Yu offered to send Kazuma and his companions to Caiye’s school and assured them they could use the passage to return anytime.

Li Yu brought his classmates and companions to Abant and made it their new base, where they began choosing places to live. Meanwhile, Aqua returned to find the Heavenly Realm and Demon King's Castle empty, leaving her alone and in tears.

• Li Yu teleported the rookie underclassmen and classmates back to school, then took the remaining group to Abant.
• Aqua found the Heavenly Realm empty, searched for the goddesses, and went to the Demon King's Castle to look for Eris and Kazuma's group.
• Aqua found the castle deserted too and began searching for everyone before breaking down in tears.
• Li Yu introduced Abant as the group's base, and Azriel welcomed them and offered them places to live and Flugel sparring partners.
• Azriel ran off to find Index after Li Yu told her about Index's grimoires, while Asuna and the others chose to settle in before returning to school.
• Erina, Alice, and Hisako Arato decided to explore Abant, and Li Yu led the group east as eager Flugel greeted them and offered to guide them.

Li Yu brought Asuna and the others to settle in Abant, remodeled the city with Pandora’s power, and explained how they could travel between Abant and other worlds. The group was then stunned to learn that Boundary Island had also taken to the sky and that an advanced world lay beneath it.

• Li Yu led everyone to Abant’s eastern district, where they chose spacious houses and settled into one together with Arcueid.
• Asuna complained about the plain interior, so Li Yu used Pandora’s power to remodel the house and then transform all of Abant into a modern-looking city.
• Asuna and Li Yu shared a room while Yukino and the others decorated their own rooms, and Li Yu explained how they could return to Abant through their spatial marks and travel down through the library.
• Xia Yu asked why Boundary Island was floating, prompting everyone to discover it in the sky above Abant.
• Li Yu explained that the Heroic Spirits had helped complete Boundary Island and that an advanced world existed beneath it, leaving Yukino and the others astonished at how much had changed.

Li Yu helped Index agree to share her grimoires with the Flugels, then gave his classmates marks that let them travel between the library and Abant. After a day of shopping, the group returned to decorate their base, while Pandora detected a new Dimensional Rift near the moon.

• Li Yu teased Yukino, then found Index surrounded by Flugels eager to learn about her 103,000 grimoires.
• Li Yu and Pandora reassured Index that the World Will would prevent dangerous world-spanning magic, and Index agreed to explain the grimoires while the Flugels copied them.
• Li Yu gave his classmates magical travel marks, and the group returned through the passage to the library.
• Li Yu's group met Utaha Kasumigaoka, who later noticed classmates coming down from the sealed third floor and wondered what lay beyond it.
• Li Yu and his classmates spent the day shopping, returned to Abant, and began decorating their base.
• Pandora noticed an anomalous Dimensional Rift on the far side of the moon.

Li Yu and Pandora discovered mechanical invaders emerging from a passage on the far side of the moon and decided to attack them. Li Yu took Abant and the Flugel into space, leaving his classmates to observe safely as they approached the enemy.

• Pandora showed Li Yu footage of mechanical lifeforms that had emerged through a passage on the far side of the moon and infiltrated their network.
• Pandora chose to attack the invaders, while Li Yu ordered Abant to carry the Flugel and Ex-Machina toward the moon.
• Li Yu summoned the Flugel and told his classmates they could observe from the library and retreat through the passage if danger arose.
• Nangong Natsuki called Li Yu to ask why Abant was leaving Earth, and he explained that they were heading to confront the invaders.
• Abant left the atmosphere and flew toward the moon as the Flugel gathered to receive Li Yu’s orders.

Li Yu and his allies approached the enormous, expanding rift on the far side of the moon, preparing to capture the robot there and investigate the world beyond. After the Ex-Machina concealed Abant, Li Yu slipped behind the robot and prepared to seize it.

• Li Yu told his companions they would reach their destination soon, and Nangong Natsuki and Luo Hao arrived aboard Abant through the library passage.
• Luo Hao agreed to follow Li Yu's command, and he contacted Pandora to ask for Ex-Machina support.
• Einzig and the Ex-Machina arrived, then concealed Abant and everyone aboard from detection.
• Abant reached the far side of the moon, where Li Yu and Einzig found a vast spatial rift that was expanding by several centimeters per second.
• Li Yu left Abant and approached the humanoid robot, discovering that its connection to the other side had been severed before he moved to capture it.