Chapter Summaries

Fubuki asked the Chat Group for help after Saitama vanished when a driverless Isekai Truck collided with him, and Boros was about to descend on Earth. The group learned that the Hero Association could not stop Boros without Saitama, though no Transmigrator Mission had appeared.

• Fubuki revealed that Saitama had disappeared from Earth, leaving the Chat Group members bewildered.
• Fubuki explained that Genos had seen Saitama save a little girl from a driverless Isekai Truck, after which both Saitama and the truck vanished on impact.
• Su Yunqing and the others wondered if the truck had transported Saitama to another world, while Tony Stark focused on the danger facing Fubuki’s world.
• Tony Stark warned that Saitama’s absence left the Hero Association vulnerable to powerful Monsters, and Fubuki confirmed that Boros was about to descend.
• Su Yunqing and several group members expressed disappointment that there was no Transmigrator Mission, irritating Boros.

The Chat Group discussed whether anyone would help Fubuki deal with Boros, but several members declined. Su Yunqing teased Daigo about possible romances before asking about Masaki Keigo, and Daigo began explaining that the Evil Tiga incident had gone smoothly.

• Umaru Doma said Boros could not be stopped on Earth without Saitama, and Su Yunqing asked who wanted to join the mission.
• Marquis Voban and Daigo declined to go to Fubuki's world, citing boredom and preparations for Daigo's approaching final battle.
• Su Yunqing teased Daigo about Carmilla, Yuzare, and Captain Megumi Iruma, while Daigo protested and said he planned to date Rena.
• Su Yunqing asked whether Daigo had resolved the matter with Masaki Keigo, and Daigo said Masaki had transformed into Evil Tiga but retained his reason.

The Chat Group discussed why no Rescue Mission had appeared for Fubuki despite Boros arriving in her world, and Boros volunteered to face his counterpart. The group asked him to livestream the fight, leaving the anticipated battle between the two Boros versions ahead.

• Tony Stark urged the group to choose someone to deal with Boros before changing the subject, but Su Yunqing admitted she could not defeat him and noted that no Rescue Mission had been issued.
• Su Yunqing speculated that Blast might be strong enough to confront Boros, while Tony Stark pointed out that Loki was still the only member to have triggered a Rescue Mission, twice.
• Detective Conan suggested that Boros might not threaten Earth because he had come seeking a worthy opponent, and Su Yunqing cautioned that the real Boros could still destroy humanity out of disappointment.
• Boros volunteered to fight the Boros from another timeline, and Erina Nakiri welcomed the idea.
• Su Yunqing and Tony Stark asked Boros to start a livestream, while Platelet urged him to be careful.

Gabriel settled in to watch the Chat Group’s battle while Boros prepared to face the invaders in the One Punch Man World. As Tatsumaki struggled to match Geryuganshoop’s psychic power, he decided to spare her and cultivate her potential as a possible future opponent for Boros.

• Gabriel learned that Boros was heading to the One Punch Man World and chose the battle as entertainment to enjoy with her food.
• Utaha Kasumigaoka wondered whether anyone should help Boros’s subordinates, and Tony Stark explained that intervening could force Boros to protect them.
• Fubuki urged Boros to arrive soon because the heroes were struggling to hold out against the alien invaders.
• The heroes watched Tatsumaki and Geryuganshoop clash psychically among the ruins of the destroyed Hero Association headquarters.
• Geryuganshoop matched Tatsumaki’s power and resolved to spare her, hoping her talent might eventually give Boros a worthy opponent.

Fubuki joined Tatsumaki during the Hero Association’s battle with the Dark Matter Thieves’ three powerful warriors, but Tatsumaki told her to leave. Child Emperor assessed that the heroes could defeat the warriors, yet they held back because of the prophesied threat; he then called on King to handle what came next.

• Fubuki appeared and told Tatsumaki she had grown stronger, but Tatsumaki warned her that Geryuganshoop was too dangerous.
• Geryuganshoop spared the sisters to acknowledge their potential, then watched Melzargard fight Bang and Groribas battle several heroes.
• Child Emperor analyzed the three warriors and concluded that the heroes could defeat them if they were not holding back to avoid provoking their master.
• Child Emperor recalled that Fubuki had warned them their final enemy had God Level power, though he did not realize Tatsumaki had restrained herself because of a misunderstanding.
• Child Emperor told King that the heroes would have to rely on him in the end.

King stood among the heroes as they faced Boros, who mistook King's pounding heartbeat for fighting spirit and challenged him. Just as Boros struck, another Boros appeared and effortlessly caught his punch, leaving everyone stunned.

• Child Emperor took confidence from King's presence, while King secretly panicked and wished Saitama would arrive.
• Boros appeared in the sky, and his terrifying aura halted the battle as Geryuganshoop, Melzargard, and Groribas greeted him respectfully.
• The heroes recognized Boros as an overwhelming threat, while Fubuki realized how powerful he was compared with her.
• Boros mistook King's loud heartbeat for excitement and declared him the strongest person on Earth.
• Boros charged King, but an identical Boros appeared and caught his punch, shocking everyone.

Two versions of Boros clashed, and the Boros from another world proved vastly stronger despite treating the fight as a warm-up. Fubuki warned the heroes to hurry the evacuation before the two began fighting in earnest.

• Boros from another world revealed his identity to his counterpart, who challenged him to prove his strength through battle.
• The two Boros punched each other at the same time, but the Boros from another world overwhelmed his counterpart and sent him flying.
• Boros of this world regenerated, grew excited, and charged his counterpart again as their battle tore through the city.
• Child Emperor watched the clash and wondered whether parallel worlds existed while the heroes tried to contain the destruction.
• Fubuki told Child Emperor and the others to speed up the evacuation because the Boros were only warming up.
• Superalloy Darkshine struggled to believe the battle was still a warm-up, and Fubuki asked whether he had noticed Boros’s armor.

Fubuki explained that Boros wore armor to suppress his overwhelming strength and had traveled to Earth seeking a worthy opponent, though the foretold fighter was gone. She kept King's real weakness secret and described the extravagant legends surrounding him.

• Fubuki told Superalloy Darkshine and Child Emperor that Boros's armor suppressed his power and explained his history as the Universe Overlord.
• Fubuki said Boros had spent twenty years traveling to Earth after a fortune-teller promised him an exhilarating battle, but the person he sought was no longer there.
• Child Emperor wondered whether King was the foretold opponent, and Fubuki chose not to reveal King's true nature.
• Fubuki praised King with claims about his strength while privately questioning the absurd rumors that people believed about him.

Fubuki explained that Boros from a parallel world had come to help her after she contacted a mysterious organization of powerful people from different worlds. She revealed that the organization had also given her the ability to grant Psychic Powers, leaving the heroes amazed by the organization and the strength it contained.

• Child Emperor concluded that King was too strong to give Boros the exhilarating battle he wanted, while King silently panicked over their misunderstanding of his strength.
• Tatsumaki questioned Fubuki about her knowledge of Boros and suspected that Fubuki's new strength came with an unknown cost.
• Fubuki admitted that Boros from another world appeared because she requested help from a mysterious organization whose members came from different worlds.
• Fubuki explained that the organization let its members exchange for items from other worlds and that she had obtained [Level Upper], which could control and temporarily raise the Psychic Powers of users who accepted it.
• Child Emperor realized that Fubuki's ability explained why many Blizzard Group members had suddenly gained Psychic Powers, while Fubuki noted that the Hero Association had likely suspected her.
• Bang asked whether the organization had many powerful members like Boros and King, and Fubuki said it included several people at Boros's level.

Fubuki explained her knowledge of the original future and proposed opening a Hero Association exchange for resources from other worlds, hoping to strengthen a world without Saitama. Meanwhile, the Chat Group watched Another Boros easily suppress Boros from Fubuki’s world.

• Fubuki asked Tatsumaki why Geryuganshoop had fought her so evenly, and Child Emperor admitted that he had told Tatsumaki to conceal her strength and test the enemy.
• Fubuki warned that revealing knowledge of other worlds could make her a target, but said she had prepared for the risks.
• Fubuki offered to trade resources from other worlds with the Hero Association, including technology, martial arts, Monster Cells, and monster corpses.
• Fubuki argued that the Hero Association needed more powerful heroes because Saitama was gone and greater threats would appear in the future.
• Su Yunqing observed that Another Boros was easily blocking every attack from Boros of Fubuki’s world.

Boros from another world fought his counterpart and explained that the original Boros had been killed by Saitama with one punch. The battle continued as the heroes protected the ruins, while Fubuki’s account of other worlds and their powers left the Hero Association stunned.

• Su Yunqing and the Chat Group discussed whether Boros could defeat his former self, while Fubuki said Tatsumaki would restrain Melzargard, Groribas, and Geryuganshoop if they acted suspiciously.
• Boros from another world told his counterpart that, in the original future, Saitama defeated him with one punch and left him regretting that he could not provide the battle he had sought.
• Boros from this world welcomed the prospect of facing someone stronger, and the two Boroses resumed their fight with Energy Release Mode activated.
• Tony Stark mocked Boros for holding back, while Su Yunqing teased Madara Uchiha about his admiration for Hashirama Senju; Madara insisted he had only been stating facts about Tsunade.
• The Hero Association contained the battle’s shockwaves and searched the ruins for anyone left behind, while its members remained stunned by Fubuki’s descriptions of other worlds, especially the power of Magic Gods.

The S-Class Heroes watched Boros and his alternate-world self fight, and the stronger Boros defeated him with a Serious Punch before restoring his life and urging him to grow stronger. The battle ended with this world's Boros determined to seek stronger opponents, while the Chat Group discussed how Boros's power compared with Saitama's.

• The S-Class Heroes felt newly urgent about becoming stronger and considered trading knowledge, techniques, and Monster corpses for Otherworld resources.
• Boros entered [Meteoric Burst Form] and attacked Another Boros, who caught his kick and blasted the ground apart.
• Fubuki and Child Emperor evacuated the others as the battle's destruction spread through the city.
• Boros fired the Collapsing Star Roaring Cannon, and Another Boros answered with a Serious Punch that shattered his body and left him unable to stand.
• Another Boros transferred life energy to Boros, urged him to pursue stronger opponents, and convinced him to continue growing rather than die.
• Su Yunqing and the Chat Group discussed the Serious Punch and whether Boros's current strength was comparable to Saitama's.

The Chat Group discussed Marquis Voban’s repeated defeat by Reinhard and how Reinhard’s world-granted Divine Protections let him match and surpass Voban. Fubuki wondered which world Reinhard came from after learning he had beaten Voban.

• Su Yunqing teased Marquis Voban for refusing to admit that Reinhard had defeated him again.
• Tony Stark and Madara Uchiha recalled Voban once acknowledging Reinhard’s strength after their earlier battle.
• Marquis Voban explained that Reinhard’s world had granted him power equal to and then greater than Voban’s, allowing him to win.
• Su Yunqing compared Reinhard’s favor from the world to Bai Xuan’s, and Voban privately decided the two defeats were different because Bai Xuan was a Chat Group member.
• Fubuki asked where Reinhard came from, and Su Yunqing said he was from the Re:Zero world.

The Chat Group members discussed whether Reinhard could be defeated in Re:Zero World and argued that their own potential had no limits. Su Yunqing then praised Boros’s rapid improvement, while Tony Stark attributed it to the vast resources at his disposal.

• Su Yunqing said that, apart from Buddha Wutian, Bai Xuan, and Shiba Inu Thor, no Chat Group member could likely defeat Reinhard in Re:Zero World.
• Fubuki asked whether Saitama could defeat Reinhard, and Su Yunqing said he could if his growth after breaking his Limiter worked the same way there.
• Daigo said Chat Group members would eventually surpass Reinhard and Saitama because their potential was not limited by their worlds, prompting Tony Stark and others to tease him for saying it.
• Su Yunqing noted that Boros had advanced from being instantly defeated by Saitama to instantly killing his former self, despite lacking missions or special developments in his world.
• Tony Stark said Boros’s resources as the Universe Overlord explained his rapid progress and let him spend Points on himself rather than on improving a civilization.

Boros reflected on the Chat Group’s Points system before Saitama joined and revealed that he had forgotten most of the information the group had sent him. The members identified him as coming from another One Punch Man world and tried to orient him, leaving Fubuki asking what recent events he remembered.

• Tony Stark said a feature that let members spend Points directly to improve their abilities could help Boros catch up to the Marquis.
• Saitama joined the Chat Group as Caped Baldy, prompting Su Yunqing and Tony Stark to recognize him as the hero who did one hundred of each exercise and a ten-kilometer run.
• Saitama complained that Tony had called him unable to afford air conditioning, then explained that he had forgotten most of the Chat Group’s information because it contained too many words.
• Umaru told Saitama to check the Memory Copy for details about the Chat Group and events from his world’s past and future.
• Fubuki explained that she and the other members from the same setting came from parallel worlds, then asked Saitama about a recent event that had left a strong impression on him.

Saitama told the Chat Group that an Isekai Truck had sent him to an unfamiliar world, revealing that he was the Saitama from Fubuki’s world. The group concluded that the world had accepted him and his broken Limiter remained intact, while Fubuki reminded him of their past dealings.

• Saitama described waking in a wilderness after being hit by an Isekai Truck and said he had defeated several Monsters along the way.
• Fubuki recognized Saitama as the one from her world, and Su Yunqing and Daigo discussed how he had joined the Chat Group after transmigrating.
• Su Yunqing reasoned that Saitama’s limitless growth gave him strong luck in any world that accepted him, and his invitation confirmed that the new world had accepted him.
• Fubuki reminded Saitama that she had invited him and Genos to the Blizzard Group and arranged to buy the Monsters he defeated.
• Saitama remembered Fubuki and said he appreciated the Blizzard Group because it had taught him that monster corpses could be sold for money.

Saitama learned that the Isekai Truck had taken him to another world and asked how he could return. After Fubuki and Su Yunqing explained the Travel Talisman and reassured him that Genos knew he was safe, Saitama considered exploring before going home.

• Fubuki corrected Saitama after he mistook Hellish Blizzard for her name, and Su Yunqing laughed at their exchange.
• Fubuki explained that Saitama had crossed into another world and could return with a Travel Talisman from the Chat Group Mall.
• Su Yunqing urged Saitama to explore the new world because he could go home whenever he wanted.
• Saitama asked about Genos, and Fubuki told him that she had already explained the situation to Genos.
• Fubuki said Genos had stopped worrying once he learned Saitama could return, since he trusted his teacher's strength.

Saitama asked Fubuki to have Genos buy discounted beef while he explored the world he had been sent to. The group opened a live broadcast to inspect the unfamiliar grassland, and Su Yunqing claimed she could infer its cultivation system from the scenery.

• Saitama asked Fubuki to remind Genos to buy the discounted groceries, and Fubuki found out Genos had already bought them after Saitama vanished.
• Saitama praised Genos for being reliable, while Su Yunqing joked that Genos had learned to buy groceries before worrying about his teacher.
• The chat group wondered what kind of world Saitama had reached and began discussing its sparse grassland scenery.
• Fubuki guided Saitama in opening the Live Broadcast Room so the group could see his surroundings.
• Su Yunqing said the grassland revealed the world's cultivation system, but Tony Stark doubted she could tell anything from ordinary grass.

Saitama encountered Chaos Machina, a heavily armed woman who planned to ambush the Hero as soon as he left the Newbie Village. Su Yunqing recognized her as a Four Heavenly Kings member from Cautious Hero, and the group discussed the unusually cautious Demon Lord’s plan and the Hero’s own extreme caution.

• Saitama spotted a scantily clad woman carrying a greatsword on the road.
• Chaos Machina muttered that she was waiting to sense the Hero’s aura so she could confront him just after he left the Newbie Village.
• Umaru Doma, Rimuru, and Utaha Kasumigaoka reacted with disbelief to the idea of a Four Heavenly Kings member waiting near the Newbie Village to kill the Hero.
• Su Yunqing recognized Chaos Machina from Cautious Hero and explained that the Demon Lord had sent her to eliminate the newly summoned Hero before he grew stronger.
• Su Yunqing explained that the Hero in Cautious Hero was equally cautious and had leveled to the maximum before leaving the Newbie Village.

The Chat Group discussed how Seiya Ryuguin reached max level in the Newbie Village and could defeat a Four Heavenly King as soon as he left. Su Yunqing explained that Seiya’s extraordinary talent, alongside his pathological caution, made the feat possible, while Umaru wondered whether he was like an otherworldly Sage.

• Umaru Doma explained that weak Newbie Village monsters made reaching max level there practically impossible without an extremely long lifespan.
• Momonga and Blue Jelly agreed with Umaru, while Heathcliff said he wanted to add randomly appearing bosses near the Newbie Village to his game.
• The group objected to Heathcliff’s idea, and the Ordinary Group Owner explained that Seiya could train for experience and learn Gods’ abilities after seeing them once.
• The Ordinary Group Owner said Seiya’s exceptional talent and caution let him defeat Chaos Machina, one of the Demon Lord Army’s Four Heavenly Kings, immediately after leaving the Newbie Village.
• Richest Man in the Lighthouse called Seiya’s ability to copy divine skills outright cheating, and Umaru Doma wondered if he was like a Sage who used Earth knowledge to create powerful Magic.