Chapter Summaries

Allen continued his arrangement with Garou, then took him to fight Monster Association monsters while refusing to resume his hero duties. As Bang and Bomb defeated Centipede Elder, they noticed Allen and Garou nearby and prepared to meet them.

• Allen agreed to keep supplying Garou with healing potions in exchange for observing his evolution, but stopped his challenge and made him promise not to attack again until he was stronger.
• Allen invited Garou to fight the Monster Association, and they passed through a portal toward monsters attacking heroes in another city.
• Lightning Max questioned Allen about Garou hunting heroes, but Allen insisted he was no longer a hero and left with Garou, shocking the martial artists and spectators.
• Allen selected two Demon-class Monsters for Garou to fight while Bang and Bomb battled Centipede Elder in S-City.
• Bomb spotted Garou and Allen, and Bang decided Garou had not fallen beyond redemption and that the Monster Association posed little threat with Allen present.
• Bang and Bomb used their combined Secret Technique - Exploding Qi Air-Splitting Fist to shatter Centipede Elder's shell and kill the giant monster, astonishing Genos.

Allen protected Garou as he pursued becoming a monster, promising Bang that he would turn Garou back into a human afterward. Meanwhile, Artoria’s Alliance fought the monster uprising, and Sakura summoned her to capture Psykos for Allen’s research.

• Bang and Bomb found Allen observing Garou, and Allen warned them not to interfere with Garou’s evolution.
• Bang left after Allen threatened him, while Allen promised to turn Garou back into a human after he became a monster.
• Garou defeated two Demon-class Monsters, then entered Allen’s portal to challenge a Dragon-level Monster.
• The Alliance’s heroes battled monsters across half the cities, and Unlicensed Knight and his teammate defeated a Vampire before Artoria healed them.
• Artoria told the two heroes to support the fighting in W-City, then Sakura asked her to help capture Psykos alive in the Monster Association’s underground lair.

Garou opened his Limiter and was captured by Allen, while Sakura seized Psykos after Artoria annihilated the Monster Association. Dr. Genos developed a hormone that forcibly opened the Limiter, and Allen injected it, transforming into a towering silver giant above Aelionteu.

• Garou's repeated near-death battles opened his Limiter, but Allen froze him and brought him to Dr. Genos for research.
• Sakura exposed Psykos's hiding place, and Artoria destroyed Orochi and the other monsters while sparing Psykos for Dr. Genos.
• Dr. Genos explained that monsterification and becoming a hero were both controlled paths to opening the Limiter, and revealed a hormone that could force it open but might cause irreversible genetic collapse.
• Allen volunteered to test the hormone, and Sakura injected it into him after reinforcing the needle.
• Allen's body expanded and became armored as he rose through the laboratory ceiling, leaving the guardians, Sakura, and Dr. Genos stunned by his transformation.

Allen broke through his Limiter, gained immense power, and discovered he could only take a two-hundred-meter Giant form or his usual 1.4-meter form. After Allen left Psykos with Dr. Genos, Genos began questioning her about Monster Cells and the Limiter, while revealing that her memories could be read and that he might let her return if she cooperated.

• Allen broke through his Limiter, unleashed an energy storm across Sky City, and found that the Divine Heart Core in his chest had vanished as a new heart began beating.
• Allen discovered he could not control his height and shrank back to 1.4 meters after his clothes were destroyed; Sakura laughed and went to a distant island to open her own Limiter.
• Allen left Psykos in Dr. Genos's custody and asked him to obtain her Monster Cell manufacturing technique before teleporting back to the Human World with Garou.
• Dr. Genos told Psykos that she was in another world and warned that the city's guardians could read her memories and restrain her.
• Psykos refused to answer Genos's questions, but a guardian read her memories and Genos deduced that the being called God had given her knowledge of Monster Cells.
• Genos promised Psykos that he might let her return if she cooperated, then offered her wine as they prepared to discuss their research.

After defeating the entity called God, Allen explained that it would eventually resurrect and that its death had triggered disasters across Earth. He then teleported Saitama, Garou, and the S-Class Heroes to a barren planet so he and Saitama could begin their long-awaited rematch.

• Garou awoke near the battlefield and witnessed Allen fighting God, whose attacks left a vast crater and a lake of lava.
• Allen revealed his Death power, rejected God's threats about humanity's fate, and defeated it after God attacked with two black spheres.
• Garou survived the blast with a healing potion, and Allen told him that God was only an aggregate of souls resentful toward humanity.
• Saitama and several S-Class Heroes arrived, and Allen warned them that God could return in several decades while disasters and monster attacks spread across Earth.
• Saitama asked to begin his rematch with Allen, who teleported him, Garou, and the heroes to a barren planet drained by the Ten-Tails Divine Tree.

Allen revealed Drive Knight as a spy, then fought Saitama on a distant planet, and their battle destroyed the surrounding planets and star system. Sakura brought the spectators to Sky City to watch the fight, while Artoria and the guardians returned with captured robots and prepared to leave for the New World afterward.

• Allen destroyed Drive Knight and exposed him as a spy working for the organization that created the battle suits and the Machine Emperor Organization.
• Allen created a barrier around Garou and the S-Class Heroes, then began a fierce physical fight with Saitama as the spectators watched.
• Garou lost his monsterization and opened Limiter, while the battle between Allen and Saitama shattered their planet and continued across the system, ultimately destroying its star.
• Sakura teleported the spectators to Sky City and showed them the battle on a magical screen as the Blue Dragon greeted her.
• Artoria returned with seven or eight guardians carrying damaged robots and parts, and Sakura said Dr. Genos would have his memories altered before the group left for the New World.

Allen defeated Saitama in their final battle, broke through the first stage of his Limiter, and prepared to leave the One Punch Man world. He entered the Marvel Universe with Sakura and Artoria, where the Sorcerer Supreme Ancient One confronted them and Sakura began fighting her.

• Allen and Saitama unleashed their final attacks, shattering a White Dwarf Star and creating a Black Hole before returning to Aelionteu.
• Allen won the duel and completed his first Limiter breakthrough, while Saitama accepted Allen’s money and promised to protect Earth and humanity.
• After Saitama recovered, Artoria transferred leadership of the New Hero Alliance to Child Emperor, and Allen opened a Dark Gate to the next world.
• Allen, Sakura, and Artoria passed through the gate into New York and were isolated in the Mirror Dimension by Ancient One.
• Sakura challenged Ancient One, froze the Mirror Dimension, and summoned Frost Giants that attacked the Sorcerer Supreme.

Allen negotiated with the Ancient One, who let him, Sakura, and Artoria remain on Earth in exchange for future help and a new magical system. The group planned to integrate into the world while pursuing the Infinity Stones’ power, and S.H.I.E.L.D. began investigating them after detecting their energy.

• Allen used his knowledge of the Infinity Stones to persuade the Ancient One to stop fighting and negotiate with him.
• The Ancient One granted the three Travelers permission to stay on Earth and gave the Nameless Spellbook of Tier Magic to Kamar-Taj, while refusing Mordo access to it.
• Allen explained the Infinity Stones and his plan to assimilate their power to Sakura and Artoria, then said they would create identities and wait for an opportunity.
• Allen paid for their desserts with a magical gold coin to attract attention, and Phil Coulson found the coin and footage of the group.
• Coulson warned Nick Fury that the energy readings suggested a threat capable of destroying Earth.

S.H.I.E.L.D. assessed Allen and his companions as a major threat but chose to observe them, while Coulson’s team watched their Queens grocery store. Allen transformed the store into the Wonderful House and sent Artoria to welcome Coulson inside, where she greeted him as a customer.

• A S.H.I.E.L.D. researcher reported that Allen’s gold coin was pure, indestructible, and gave an energy reading exceeding eight digits, alarming Nick Fury.
• Coulson told Fury that Allen’s group had bought a Queens grocery store with gold coins and that the owner appeared to have been affected by mental control; Fury ordered Coulson to observe them under Level Ten security.
• Coulson’s agents surrounded the store and drove criminals from the neighborhood to improve the area’s safety, while Allen watched their actions and noticed a Hydra squad nearby.
• Allen told Artoria to open the store after she lost a bet, and she activated magic circles that transformed the building into a towering spire surrounded by flowers before it returned to normal as Allen’s Wonderful House.
• After Fury authorized an investigation, Coulson approached alone, saw the transformed scenery reappear, and entered the house, where Artoria greeted him in a maid outfit.

Allen met S.H.I.E.L.D. agent Coulson in the Wonderful House and used the encounter to establish how far his power and technology surpassed Earth’s. After warning Coulson and Nick Fury not to interfere, Allen showed Coulson the powerful robots and biological enhancements he had gathered, leaving him overwhelmed.

• Coulson arrived at the Wonderful House, where Allen claimed the Sorcerer Supreme had authorized his presence on Earth and tried to erase Coulson’s memories.
• Sakura reminded Allen that Coulson was a guest, so Allen let him call Nick Fury instead.
• Nick Fury falsely claimed that S.H.I.E.L.D. knew about Kamar-Taj, but Allen exposed the lie, ended the call, and warned Coulson to relay his threat to Fury.
• Allen guided Coulson around the Wonderful House and demonstrated robots powered by fusion reactors and biological products that could grant extraordinary abilities at deadly risk.
• After an hour and a half touring Allen’s collection of technology, magic, and life-enhancing products, Coulson was left dazed by the gap between Earth and the visitors.

Coulson traded his wallet for healing and mana potions at the Wonderful House, then Allen erased his and Nick Fury’s memories of the Sorcerer Supreme. Fury and Coulson planned to investigate the visitors and arrange future exchanges, while Hydra’s attempt to approach the house ended with its agents abandoning their weapons and fleeing.

• Allen told Coulson that the Wonderful House accepted only equivalent-value payments, then gave him potions in exchange for his wallet and erased his memories of the Sorcerer Supreme.
• Coulson returned to headquarters, where Allen’s spell also erased Nick Fury’s memories before both men recovered the information by reviewing surveillance footage.
• Fury ordered Coulson to create files on the three visitors and enlist Agent Romanoff to help analyze them, while Coulson suggested trading gold to test the visitors’ claims.
• Sitwell and Crossbones led Hydra squads toward the Wonderful House, but Crossbones realized they were walking in circles and ordered a retreat.
• Allen made the Hydra agents’ weapons unbearably heavy and warned them to leave; Sitwell, Crossbones, and the others discarded their weapons and fled.

Allen let Hydra's agents escape, then heard Ancient One's proposal that he merge with the world supporting him and become a new source of magic for Kamar-Taj. He resolved to pursue the Infinity Stones to reshape Azerath, while Alexander Pierce ordered Hydra to monitor Coulson and investigate Allen's group.

• Allen explained to Artoria that Hydra was rooted in human society, gave her Coulson's money, and watched her and Sakura leave to explore New York.
• Ancient One returned the Nameless Spellbook and urged Allen to integrate himself with his game world, offering Kamar-Taj's support if he gathered the other five Infinity Stones.
• Allen considered Azerath's potential and decided the Infinity Stones could help him make it a real world, then planned when and how to obtain each stone.
• Alexander Pierce questioned Sitwell and Crossbones about the failed operation and learned that Allen's group displayed several Superpowers.
• Alexander Pierce ordered Hydra to watch Coulson, obtain the laboratory's test results and sample, and infiltrate Coulson's team before targeting him.

S.H.I.E.L.D. arrived at Allen’s grocery store to trade for advanced goods, but Allen insisted that Wonderful House only dealt in extraordinary items after midnight. When Natasha accidentally activated an enchanted pistol and suffered serious injuries, Coulson agreed to buy all of Allen’s modified weapons for five million US dollars.

• Sakura and Artoria returned from a night of drinking, and Allen reassured Artoria that she could enjoy herself while warning Sakura about her mischievous behavior.
• Coulson and Natasha arrived with a truck carrying gold and Vibranium, but Allen told them to return after midnight because Wonderful House only operated then.
• Allen showed them the daytime store’s military-grade weapons and told Coulson that Hydra had tried to approach the shop with guns the previous night.
• Natasha accidentally activated the magical engraving on a pistol, which blasted a huge crater in the ground and left her seriously injured.
• Allen explained that he had modified and enchanted the guns, and Coulson agreed to buy them all for five million US dollars.

Natasha survived the recoil of Allen’s modified weapon and learned that Saber’s Holy Light Technique could heal her instantly. At a S.H.I.E.L.D. safe house, Nick Fury tested the purchased magic rings and activated the GX51 combat robot, which revealed that it was temporarily available to anyone.

• Saber healed Natasha’s broken bones and internal injuries with Holy Light Technique, then warned her that Allen’s modified weapons could be far more dangerous.
• Natasha told Coulson about Saber’s healing power, and he refused to reveal what S.H.I.E.L.D. knew about Allen, Artoria, and Sakura.
• Coulson and the agents transported a giant robot and an assortment of weapons to a safe house near the US-Mexico border, where Nick Fury inspected them.
• Natasha warned Nick Fury that ordinary agents could not withstand the modified weapons’ recoil, and he explained that the magic rings could boost their strength and constitution.
• Nick Fury put on a magic ring and punched a crater into a concrete wall, then ordered Coulson to activate the robot.
• The robot identified itself as GX51, a general-purpose intelligent combat robot, and announced that no reset code phrase or highest-priority operator had been set.

Nick Fury tested GX51 and began a covert investigation into Hydra, while Allen sent Alesia to place her cat Roa with Tony Stark. Alesia succeeded at a New York charity banquet, leaving Tony with the cat and unaware of her true purpose.

• Nick Fury tested GX51 in combat and found that its armor withstood his weapon and its speed overwhelmed him.
• Nick Fury assigned GX51 an operator and reset passphrase, then asked Coulson and Black Widow to secretly observe several Hydra suspects.
• Allen and Sakura discussed Hydra’s infiltration of S.H.I.E.L.D., and Allen told Sakura it was not yet time to interfere.
• Allen sent Alesia to find Tony Stark and put Roa in his care, and Alesia agreed to complete the mission.
• At a charity banquet, Alesia asked Tony Stark to look after Roa, then disappeared into the crowd.
• Happy tried to take Roa for examination, but the cat startled him and then cozied up to Tony.

Tony Stark kept the black cat Roa after the girl who gave it to him vanished, while Allen authorized a covert operation to take Vibranium from Wakanda. At S.H.I.E.L.D., Nick Fury revealed the otherworldly visitors and their advanced technology to the World Security Council, drawing Alexander Pierce’s eager interest in the robot GX51.

• Tony Stark learned that no one had seen the mysterious girl who gave him Roa, and he asked Pepper Potts to advertise for information about her.
• Edna Bevin requested permission to seize Wakanda’s Vibranium, and Allen authorized the Guardians to secretly mine no more than two-thirds of its reserves before withdrawing.
• Ten Guardians left for Wakanda, while Artoria questioned Allen’s plan and he rejected trade as an option.
• Alexander Pierce and the International Security Council demanded details from Nick Fury, who disclosed the existence of Kamar-Taj and showed them a demonstration of GX51.
• Alexander Pierce realized S.H.I.E.L.D. had withdrawn funds to buy gold and Vibranium and looked forward to claiming GX51 for Hydra.

Nick Fury warned the Security Council against trying to control Allen and his companions, but the Council ordered a diplomatic visit, which Allen planned to use to demonstrate his strength. Meanwhile, Tony Stark was kidnapped in Afghanistan, where Roa found him as terrorists demanded that he build missiles.

• Nick Fury cautioned the Security Council that Allen, Artoria, and Sakura were vastly powerful, but the Council ordered S.H.I.E.L.D. to arrange a diplomatic delegation to visit them.
• Nick Fury sent Coulson to tell Allen about the visit, and Allen agreed, intending to show the representatives Sky City and its strength.
• Alesia reported that Tony Stark had been attacked and captured in Afghanistan, and Allen ordered her to monitor him while delaying a rescue.
• Tony woke in a cave and learned from Ethan that a magnet was keeping shrapnel from reaching his heart; Roa then appeared and Tony welcomed the cat.
• Terrorists entered the cave and demanded that Tony manufacture Stark Industries missiles, but he refused until they used their own method to change his mind.

Allen welcomed Coulson and the International Security Council representatives, showing them the power and scale of Aelionteu in the world of Azerath. He declared his alliance with Earth and hosted Coulson at a banquet, where Ice Worm meat temporarily enhanced his physique.

• Allen and the Guardian Steward watched Tony Stark secretly plan to build Iron Man Armor while imprisoned, and the Steward expressed interest in studying Tony's Arc Reactor.
• Sakura assured Allen that the preparations to impress the visiting delegation were complete, and Allen welcomed Coulson and the International Security Council representatives to Wonderful House.
• Allen transported the delegation to Azerath and displayed Aelionteu's forces, including Great Dragons, combat robots, and Super Giants.
• Allen told Coulson that he had come to Earth without a specific purpose and would support humanity against otherworldly or extraterrestrial threats as an ally of the Sorcerer Supreme.
• Allen served Coulson Ice Worm meat, which temporarily enhanced Coulson's physique and relieved his fatigue.

Allen negotiated a secret alliance between the International Security Council and his group, while demonstrating the danger and potential of humanity to the representatives. After revealing that Artoria was the King Arthur of another world, he left Coulson reflecting on his choices just as Nick Fury called.

• After a silent meal, Alexander Pierce tried to use S.H.I.E.L.D.'s deal with Allen to gain access to advanced technology, but Allen explained that the GX51 robot would self-destruct if anyone tried to dismantle it.
• Allen revealed that he was human and described Carol Danvers and Dormammu as examples of humanity's potential, then wiped the representatives' memories after Coulson warned him not to disclose such information.
• The International Security Council and Allen's group signed a secret alliance treaty granting Allen's people legal identities and permission to operate on Earth in exchange for weapons, technology, and help against external threats.
• After the representatives left, Coulson asked Allen about his age and learned that Artoria was King Arthur from another world; Allen told him that choices mattered more than which version of a legend was true.
• Allen left Coulson with a reflection on his choices, and Coulson's phone rang with a call from Nick Fury.

Allen sent Sakura into space to explore and gather technology, deliberately testing how much he could alter the timeline while keeping Artoria out of public view. In Afghanistan, Tony and Ethan finished building the Iron Man suit, but Allen insisted Ethan had to die in front of Tony for the original Iron Man timeline to unfold.

• Coulson received a mission to investigate Tony Stark's kidnapping and terrorist attack.
• Sakura launched a small spacecraft into space with Allen's permission, triggering an alert and a call from Nick Fury.
• Allen admitted to Artoria that Sakura's flight was a test of the timeline and told Artoria not to use Holy Light Power in public.
• Tony and Ethan completed the Iron Man suit while Roa brought them stolen beer and snacks.
• When terrorists broke into the cave before the software finished loading, Ethan drew them away so Tony could complete the suit.
• Artoria objected to letting Ethan die, but Allen said Ethan's death had to happen in front of Tony and offered to resurrect him afterward if Artoria recovered his corpse.