Chapter Summaries

Terumi Mei backed Tsunade to become Commander-in-Chief of the Allied Shinobi Forces, and Duke was assigned to lead the front-line Second Division. That night, in the Unknown Space, Ura Ichiban Duke began teaching a new Duke from Doraemon World about his methods and coveted the world’s gadgets.

• Terumi Mei returned to the conference hall and recommended Tsunade for Commander-in-Chief, despite the Raikage’s confidence that she would support him.
• The Raikage protested Terumi Mei’s choice, but Mifune restrained him, and Tsunade won the vote three to two.
• The Five Kage organized the Allied Shinobi Forces as reports revealed a hundred-thousand-strong White Zetsu army, and Duke was appointed commander of the front-line Second Division.
• Ura Ichiban Duke lectured a newly recruited Duke from Doraemon World on pursuing women and showed him memories of his exploits.
• Ura Ichiban Duke explained that he wanted the newcomer’s help to obtain Doraemon gadgets, including the Time Machine, Anywhere Door, and What If Phone Booth.

The Ura Ichiban Big Boss urged elementary school student Duke to obtain Doraemon’s future gadgets, then welcomed two new Dukes from Fighting World. He encouraged the Fighting World Duke to build a harem and interfere in major events, leaving him wary of the Big Boss’s dangerous suggestions.

• The Ura Ichiban Big Boss told elementary school student Duke to borrow Doraemon’s Time Kerchief or find another way to acquire future gadgets for the Dukes to study.
• Two new Dukes arrived in the Unknown Space, and they learned about the Big Boss’s romantic exploits.
• Duke from Fighting World recounted how he became a hero, joined missions with allies including Billy, Jimmy, Jack, and Chun-Li, and entered the KOF tournament in 1997.
• The Ura Ichiban Big Boss urged Duke from Fighting World to pursue a harem and earn goodwill from the girls by getting ahead of the Three Sacred Treasures when Orochi caused trouble.
• The Big Boss suggested that Duke from Fighting World cuckold Cloud and Andy, leaving Duke speechless.

Duke recounted how Old Military Doctor’s Feng Shui book drew him into tomb raiding, where he joined Bayi, Kaixuan, and Shirley Yang and became entangled in supernatural curses. When Shirley Yang sought his help in Egypt with Indiana Jones, Duke discovered that his world also contained Skull Island.

• Fighting World Duke politely refused the Big Boss’s suggestion to pursue multiple girls, and the Big Boss turned to the newcomer Duke from the Tomb Raiding World.
• Duke befriended Old Military Doctor, who gave him the Sixteen-Character Yin-Yang Feng Shui Secret Technique before dying; Duke was then kicked out of the army and thrown out by Father Du.
• Duke recruited Kaixuan, Bayi, Big Gold Tooth, and Shirley Yang, joined their trip to Jingjue Ancient City, and survived while acquiring a curse and funds for his business.
• Duke joined Wu Sansheng and his nephew on the journey to the Seven-Star Lu Palace, gained valuable artifacts, and learned that he could not simply leave tomb raiding behind.
• Shirley Yang emailed Duke about removing his curse with the Golden Sutra of the Sun in Egypt and hired Indiana Jones to help.
• Duke saw the Greater China Navy discover Skull Island on television, and his lighter fell as he realized how vast his world was.

After entering the One-Punch Man World, Duke discovered that his strength had grown beyond his ability to measure and set out to investigate the limiter. When a Monster attacked City A, he rushed to confront it and arrived as Vaccine Man threatened a little girl.

• In the Unknown Space, Big Boss warned Tomb Raiding World Duke that his world might contain real gods and urged him to be careful.
• Duke considered testing his immense strength against Saitama but decided the risk was too high, then planned to study the limiter and try cooking Monster Cells.
• Duke sensed a sudden surge of killing intent in the supermarket, but found only the clerk staring at the instant noodles he was handling.
• A Monster invasion struck City A with a barrage of Energy Blasts, and Duke flew toward the destruction.
• Duke arrived as Vaccine Man reached toward a little girl amid the ruins.

Duke rescued a girl from Vaccine Man, then accepted Saitama’s challenge and led him to a remote desert for a fight. Their opening clash left both injured and eager to continue as Saitama rushed at Duke again.

• Duke rescued an unconscious girl as Vaccine Man attacked, and Saitama arrived to confront the monster.
• Saitama defeated Vaccine Man with one punch, then challenged Duke to a fight after sensing his strength.
• Duke flew toward a remote desert, and Saitama followed by running from City A and launching himself with a leap.
• Duke and Saitama exchanged names and traded powerful punches that split the ground and sent them crashing into separate craters.
• Duke wiped blood from his mouth as Saitama praised his strength and charged at him again.

Duke and Saitama fought at escalating speeds and power across a desert, culminating in Duke’s Supernova Energy Bomb. The explosion devastated the desert, but Saitama emerged largely unharmed while Duke was left battered and nearly out of clothing.

• Duke accelerated and struck Saitama into the ground, then challenged him to grow stronger.
• Duke merged two Energy Blasts into a massive beam that swallowed Saitama, but Saitama’s power awakened and the two resumed their midair battle.
• Saitama exploited an opening in Duke’s defense and overwhelmed him with punches and kicks, sending him flying upward.
• Duke summoned a huge Energy Blast and launched his Supernova Energy Bomb at Saitama.
• Saitama’s barrage slowed and pushed the Energy Bomb back toward the sky, so Duke detonated it with an Impact Wave.
• After the explosion carved a massive crater into the desert, Saitama stood up unharmed while Duke hovered nearby, bruised and in torn clothing.

Duke healed himself with Life Return and resumed his fight with Saitama, whose interest in the technique centered on whether it could control hair. As their battle intensified, the Hero Association detected a massive energy reaction in the Death Desert and sent for Metal Knight and its S-Class Heroes.

• The Hero Association detected an unknown, extremely powerful energy reaction in the Death Desert, but magnetic interference prevented its satellites from producing images.
• The officer ordered the staff to keep monitoring the source, contact Metal Knight, and send every S-Class Hero at headquarters to the location.
• Duke used Life Return to heal his injuries and restore his strength, while Saitama eagerly asked whether the technique could control hair.
• Saitama attacked at high speed, struck Duke, and sent him carving a long trench through the desert.
• Duke appeared behind Saitama, kicked him away, and fired a barrage of Ki Blast Cannons, which Saitama smashed through before charging back into the fight.
• As Saitama lost sight of Duke, an arm reached from his blind spot and grabbed his wrist.

Duke and Saitama fought with escalating power, culminating in Duke’s Dragon Fist clashing with Saitama’s Serious Punch. The collision engulfed the battlefield in light and sent shockwaves as far as City A, leaving the outcome unresolved.

• Duke struck Saitama with a point-blank Impact Wave, then used a Kamehameha to launch him into the sky and unleash a massive explosion.
• Saitama fell back to the ground largely unharmed, and he and Duke resumed their fight across the desert.
• Duke’s power grew during the battle, allowing him to catch Saitama’s punch and then headbutt him away.
• Duke gathered his strength for a Dragon Fist while Saitama answered with a Serious Punch.
• Their attacks collided in an enormous burst of energy that shook City A and cleared the clouds from the sky.

Duke and Saitama spent days battling over video games, while a mosquito swarm invaded Z-City and Genos confronted the Mosquito Monster. Duke slept through the destruction outside as Genos prepared to fight the monster.

• Duke let Saitama play his expensive game console, and Saitama decided to join the Hero Association after learning heroes received salaries.
• Duke and Saitama played hundreds of matches over three days, ending in an almost even tally before Saitama fell asleep on Duke’s sofa.
• A massive mosquito swarm invaded Z-City while Duke and Saitama slept in the apartment building.
• Genos burned through the swarm with his Incineration Cannon and identified the Mosquito Monster as its source.
• Genos faced the descending Mosquito Monster and confidently announced that he would eliminate her.

Duke and Saitama ended their devastating fight before it could endanger nearby cities, then left to eat together in Z-City. The Hero Association found the ruined battlefield and took comfort in believing King could handle the unknown fighters.

• Duke and Saitama fought across the Death Desert, leaving a vast crater and exposing lava, before Duke stopped the battle to protect nearby cities.
• Saitama asked to spar again, and Duke teleported them away because they were hungry.
• The Hero Association's first team arrived too late, found evidence of two beings powerful enough to defeat all the S-Class Heroes, and rallied around King.
• Duke and Saitama ate so much that the restaurant ran out of ingredients and its chefs collapsed or broke down.
• Duke recalled how he took money from criminals who repeatedly begged him to accept it, then invested in Hero Association shares to support his homebody life.

Genos fought Mosquito Girl, but she evolved after absorbing the gathered mosquitoes and overwhelmed him. A furious Cultivation Faction member intervened and defeated her in an instant, while a researcher at the House of Evolution decided to capture the powerful stranger for study.

• Genos tore off Mosquito Girl's legs, but she summoned mosquitoes from across Z-City and absorbed them to evolve.
• Genos incinerated the mosquito swarm, but the transformed Mosquito Girl regenerated her legs and badly damaged him.
• As Mosquito Girl prepared to kill Genos, an angry Cultivation Faction member shouted from a nearby apartment and interrupted them.
• Mosquito Girl flew toward the apartment, but a flash of power struck her and left one of her arms falling beside Genos.
• A researcher at the House of Evolution saw Mosquito Girl's defeat on a screen and ordered his messenger to bring the stranger in for research.

Duke and Saitama spent the morning bickering at home before Genos arrived, seeking the fighter who had used the Ki Blast Cannon against Mosquito Girl. After learning Duke might have fought her while asleep, Genos asked Duke to accept him as a disciple.

• Duke woke up, kicked Saitama awake, and fired a Flash Cannon at him.
• Duke and Saitama argued over the bathroom, and Saitama went outside to urinate, where Genos saw him.
• Genos entered Duke's home and found Duke trying to pull out a loose tooth with a fishing line.
• Duke and Saitama learned Genos had come looking for the person who used the Ki Blast Cannon against Mosquito Girl.
• Genos asked Duke to accept him as his disciple.

Duke refused to take Genos as his disciple but arranged a match between him and Saitama, who defeated him with one punch. Genos became Saitama’s disciple and sought the secret to strength, while Duke urged him to rely on himself.

• Duke rejected Genos’s request to become his disciple and offered to introduce him to someone stronger: Saitama.
• Genos dismissed Saitama’s strength, so Duke proposed a match: Genos would become Duke’s disciple if he won, but would apologize and ask Saitama to teach him if he lost.
• Saitama accepted Genos’s cash as a gift and knocked him out with one punch; Genos apologized and asked Saitama to accept him as a disciple.
• Saitama told Genos that his strength came from a daily exercise routine, but Genos doubted the explanation and asked Duke for his secret.
• Duke told Genos that he had become strong by relying on himself, and Genos resolved to work hard.

Duke and Saitama fought off an attack by monsters from the House of Evolution, and Duke told Genos that the organization was likely targeting Saitama. Genos set out with Saitama to destroy the House of Evolution and take the Hero Association exam, while Duke avoided revealing his hero name.

• Saitama asked Duke about Hero Association salaries and decided he would take the exam, but Duke defeated him repeatedly in their video game.
• An Iron Mantis monster from the House of Evolution broke into the apartment, and Duke threw Saitama outside, where Saitama quickly killed the monsters surrounding the building.
• Genos returned with food, blamed himself for the attack, and learned from Duke that the monsters and the earlier Mosquito Disaster were linked to the House of Evolution.
• Duke asked Genos to protect Saitama and take him to the House of Evolution, then suggested they stop at the Hero Association for exams.
• Genos agreed to go with Saitama and take the exam himself, then asked Duke what his hero name was; Duke refused to say.

After repairing his home, Duke rejected Fubuki’s invitation to join the Fubuki Group and urged her to stop limiting herself to B-Class. Fubuki left angry, while Duke made clear he feared neither her nor Tatsumaki and wanted to keep his quiet life.

• Duke repaired his broken window and wall, then tried to relax with a video game.
• Fubuki visited Duke and asked him to join the Fubuki Group, but he refused.
• Fubuki argued that Duke was avoiding the competition in A-Class, while Duke said he was content with his life and stronger than the monsters she feared.
• Fubuki worried that Duke might threaten her position as the top-ranked B-Class hero and asked him to reconsider.
• Duke told Fubuki that remaining in B-Class could stunt her growth and widen the gap between her and Tatsumaki.
• When Fubuki accused him of fearing Tatsumaki, Duke said he was concerned that beating her would disrupt his leisurely life.

Fubuki tried to persuade Duke to rise through the Hero ranks, but his strength and refusal to budge left her shaken. After Saitama and Genos returned from their Hero evaluations, Duke took them and Fubuki to a desert so Genos could spar with Saitama, where the fight was about to begin.

• Fubuki offered to have her group help Duke eliminate monsters and reach A-Class, but he refused because missions would interrupt his gaming.
• When Fubuki challenged Duke, he crushed his controller and frightened her into politely asking for water; Duke explained his disliked Hero name, Qigong Master.
• Saitama and Genos returned, with Saitama ranked last in C-Class and Genos ranked S-Class, and Duke suggested they celebrate over a meal.
• Fubuki checked the Hero Association website and confirmed Genos's S-Class ranking, while Duke dismissed her as a passerby.
• Genos asked to spar with Duke and Saitama, so Duke teleported them and Fubuki from Z-City to a remote desert.
• Duke sent Saitama to face Genos first, and Genos prepared to use his full strength in the spar.

Genos challenged Saitama to a sparring match, unleashing increasingly powerful attacks that Saitama calmly dodged. As the fight continued, Duke explained Saitama’s strength and the limiter to a stunned Fubuki, while Genos prepared a maximum-output attack.

• Genos attacked Saitama with high-speed kicks and an Incineration Cannon, but Saitama dodged them easily.
• Genos activated his acceleration system and fought Saitama at tremendous speed, while Fubuki watched from behind a defensive barrier.
• Duke told Fubuki that Saitama was probably the strongest person in the world and could defeat even Dragon-level monsters with one punch.
• Duke explained that Saitama had broken humanity’s limiter through hard work, and Fubuki asked how becoming a monster differed from breaking the limiter.
• Genos unleashed a Machine Gun Blow, realized he had struck an afterimage, and prepared a Maximum Output Incineration Cannon against Saitama.

Saitama narrowly avoided Genos’s attack, then demonstrated overwhelming strength before Duke defeated Genos in a spar. Fubuki learned Saitama’s training routine and joined the group for noodles, where Duke devoured her uneaten bucket and ordered five more.

• Genos unleashed a powerful fire attack, but Saitama dodged it and prepared to fight seriously.
• Saitama’s punch missed Genos but blasted a vast chasm through the mountains, leaving Genos and Fubuki stunned.
• Duke fought Genos, vanished from his sight, and ended the spar with a Death Beam that raised a distant mushroom cloud.
• Fubuki asked how Saitama became so strong, and he credited daily exercises and running for three years while warning that the price was going bald.
• Duke brought Saitama, Genos, and Fubuki to a noodle shop, where Fubuki struggled with a bucket-sized serving while the others ate.
• Duke finished Fubuki’s uneaten noodles and ordered five more buckets.

Fubuki asked Duke to help her become stronger, but he told her that real improvement required hard work rather than shortcuts. When Tatsumaki warned that a Dragon-level meteor was about to strike Z-City, Duke went to save the world, and Fubuki followed him.

• Genos increased his monster-hunting missions while Saitama struggled to find monsters and keep his C-Class ranking.
• Fubuki visited Duke and asked him to train her, offering him a stack of money as tuition.
• Duke explained that Fubuki could not improve quickly through a shortcut and would have to work hard to become stronger.
• Duke sensed a huge object falling toward Z-City as Tatsumaki called Fubuki and warned her to flee from the incoming meteor.
• Duke left to stop the meteor, and Fubuki hung up on Tatsumaki and followed him.

As a meteor threatened to destroy Z-City, Genos prepared to fight it while Bang urged him to give everything he had. Saitama arrived and revealed Duke was already in the sky, where Duke destroyed the meteor and ended the crisis.

• Genos and Bang stayed in Z-City as a huge meteor descended, and Genos prepared to attack it with his newest armor.
• Bang noticed Genos was panicking and reminded him to give the fight everything he had rather than dwell on failure.
• Saitama arrived and told Bang that Genos had another teacher, Duke, who was in the sky beneath the meteor.
• Duke unleashed a powerful Impact Wave that shattered the meteor and blasted its fragments into dust.
• Saitama reassured Genos that the danger had passed and took him home.