Chapter Summaries

After Tatsumaki raised the Monster Association’s base, Gyoro Gyoro sent the Dragon-level executives to begin the final battle. The heroes entered the base, where Flashy Flash got lost and the others followed through separate passages.

• Genos took Saitama’s words as a lesson in emotional intelligence and began writing notes again.
• Gyoro Gyoro declared the final battle underway and sent the Dragon-level executives toward their opponents while Orochi ate fallen monsters.
• Black Sperm left the meeting, saying he would wait until the humans fought their way in.
• Flashy Flash entered the base, emerged again after going the wrong way, then dashed inside once more.
• Bang and Bomb entered through another passage, while Superalloy Darkshine and Puri-Puri Prisoner followed through the same rocky entrance.

The S-Class Heroes began entering the Monster Association base, with Genos and King scouting ahead while Saitama stayed behind. Josen helped Pig God reach the entrance and connected the heroes through Mantra, giving them a detailed map of the base and its occupants.

• Genos asked Saitama for permission to scout ahead, and King joined him to watch his back.
• Saitama sent Genos and King into the base, then headed to the nearby buffet for more food.
• Atomic Samurai agreed to let Iaian and his two fellow disciples enter the base with him.
• Sweet Mask dismissed his camera crew and told them to retreat to safety.
• Josen used his power to carry Pig God to the entrance, where Pig God entered the base.
• Josen connected the heroes through Mantra and displayed a map showing the base's passages, enemies, allies, and real-time information.

Josen used the JoJo Map to give the Heroes battlefield information as the Monster Association’s forces attacked. Tatsumaki was taken home to sleep, leaving the remaining Heroes to fight the monsters in Z City.

• Josen connected the Heroes to the JoJo Map, whose markers revealed units’ vitality, stamina, and energy, while Saitama connected during the buffet.
• The map warned of monsters approaching the stone pillar, and Sekingar alerted the defenders as the Heroes prepared to engage.
• Mumen Rider rallied the ordinary Heroes with his Justice Roar, while Royal Ripper and Bug God led monsters in different directions.
• Tatsumaki’s power threatened to wipe out the charging monsters, but Josen took her home to rest, removing the second-ranked S-Class Hero from the battle for the night.
• Josen returned to Z City to find the battle raging, with the Psychic Legion and other Heroes attacking the monsters using speed, strength, fire, and vines.

The heroes repelled the Monster Association’s first charge with help from the S-Class Training Program and Psychic Legion. Vampire rushed Saitama at the buffet and was killed by a single Normal Punch, leaving Saitama considering a trip into the Monster Association’s base.

• The flaming vines’ martial soul fusion technique swept monsters into its attack range as Plant unleashed enhanced psychic powers.
• Mechanical Psychic Powers protected the heroes with a close-fitting Psychic Powers Shield, helping them defeat Royal Ripper and repel the first charge without injury.
• Vampire emerged from the stone pillars and chose the half-bald Saitama as his target while Saitama ate at the buffet.
• Saitama punched Vampire apart without turning around, and Vampire’s head burst before his regeneration could save him.
• Saitama set down his plate, looked toward the battlefield, and checked the Monster Association’s layout on the JoJo Map.

Flashy Flash encountered Gale Wind and Hellfire Flame, former ninjas from the Ninja Village who had joined the Monster Association and considered becoming monsters. The two drew their blades and prepared to kill him, leaving their clash about to begin.

• Saitama studied the JoJo Map, gave up trying to understand it, and headed toward the battlefield to clear out monsters aboveground.
• Flashy Flash killed four monsters inside the Monster Association base and sensed hidden figures nearby.
• Gale Wind and Hellfire Flame emerged and revealed they were ninjas from Flashy Flash’s village who had joined the Monster Association.
• Flashy Flash accused them of being villains and said he might kill them before they became monsters; the pair were stunned because they had been considering monsterization.
• Gale Wind and Hellfire Flame claimed they had been hired to hunt Flashy Flash, but he dismissed their story and they drew their blades, declaring they would kill him.

Flashy Flash fought Gale Wind and Hellfire Flame in a dark passage while King and Genos cleared monsters deeper in the Monster Association base. King and Genos reached the association’s central area and identified Gyoro Gyoro and Orochi as their targets below.

• Flashy Flash evaded Gale Wind and Hellfire Flame’s attack and challenged them before the three vanished into a sword fight.
• Genos smashed a bug-eyed monster into a wall while King warned him to duck and blasted a group of monsters with an electrically charged plasma cannon.
• King and Genos continued fighting together, defeating cannon-fodder monsters and nearly ten Demon-level Monsters as their teamwork improved.
• Genos destroyed an ambush squad with the Incineration Cannon, and King found that his lightning attack had opened a hole into a deeper level.
• King and Genos used the JoJo Map to identify the Monster Association’s central area and the two targets below: Gyoro Gyoro and Orochi.

King and Genos leaped into the darkness to test their strength as the Heroes fought the Monster Association aboveground. The battle took a turn when the gigantic Hundred-Eyes Octopus emerged from the base, stunning the Heroes.

• King and Genos synchronized their attacks and jumped into the abyss after recalling Josen's warning about powerful monsters.
• Fubuki hurled a huge rock at the monsters and watched the Fubuki Group charge into battle.
• A huge creature crushed Long-Nosed Elephant Man and the monsters in its path as it forced its way through the deployment passage.
• Captain Mizuki killed a dog-headed monster with a Bodybuilding Grapple, then spotted something emerging overhead.
• Lightning Max and the nearby Heroes looked up as the several-hundred-meter Hundred-Eyes Octopus appeared on the Monster Association base.

Mumen Rider charged into the battlefield and attacked the enormous Hundred-Eyes Octopus, stunning the Heroes who had doubted a C-Class Hero could stop it. He broke through the monster formation and descended on the octopus with a powerful Justice Punch.

• Food Butler panicked at the approaching Hundred-Eyes Octopus, while Mechanical Psychic Powers assured him that Mumen Rider could stop it.
• Mechanical Psychic Powers identified the figure running toward the monster army as Mumen Rider, the best graduate of their class.
• Mumen Rider used Justice Charge to smash through the monster formation and send monsters flying.
• Hundred-Eyes Octopus tracked Mumen Rider and swung its tentacles at him, but he dodged them with the Type Zero nanosuit.
• Mumen Rider unleashed Justice Punch from above, slicing through the octopus's intercepting tentacles and closing in on its head.

Mumen Rider destroyed Hundred-Eyes Octopus with a powerful strike but was left exhausted and surrounded by monsters. Sonic Man rescued him, while Sweet Mask continued fighting and witnessed an ordinary B-Class Hero unleash a powerful electric attack.

• Mumen Rider obliterated Hundred-Eyes Octopus with the Power of Justice, leaving a huge crater and exhausting himself.
• Monsters rushed toward the helpless Mumen Rider, but Sonic Man arrived and smashed them apart.
• Sonic Man helped Mumen Rider recover enough to move, then carried him away at high speed.
• Sweet Mask admired Mumen Rider's attack before crushing two monsters and turning his attention to the stream of creatures pouring from a stone pillar.
• Sweet Mask saw an ordinary B-Class Hero swallowed by a monster horde, then watched the young man erupt into the air with a lightning-charged uppercut that blasted dozens of monsters into charcoal.

The Fubuki Group fought waves of Tiger-level Monsters while Fubuki struggled to manage her dwindling psychic power. She stopped a mass charge with Hell Gale, but the attack left her nearly exhausted and forced her to land.

• Sweet Mask watched Glasses disappear in a flash of lightning, then hurried toward another defensive line.
• Eyelashes and Three-Section Staff Lily worked together to defeat a tiger Monster while the Fubuki Group held off the waves.
• Mountain Ape threw a gorilla Monster to the ground and urged the others to keep fighting to protect Fubuki.
• Fubuki realized that the group was unprepared for a prolonged assault and that she had already spent more than half her psychic power.
• Fubuki unleashed Hell Gale, battering the charging Monsters and allowing the group to surround and attack them.
• Fubuki's psychic power nearly ran out, and she staggered to the ground as the group continued fighting.

Fubuki’s group survived the monster wave with help from Blaze and a frost-controlling Hero, who followed orders to protect Heroes from casualties. Underground, Pig God defeated Kong Kangaroo and his monsters before dodging a surprise attack from the Dragon-level monster Gums.

• Blaze and the frost-controlling Hero arrived to support Fubuki’s group and wiped out the monsters that had broken through.
• Fubuki thanked the two Heroes and rested, accepting that they had their reasons for not explaining whose orders they followed.
• Kong Kangaroo led a group of monsters toward the Hero they believed was ahead, but Pig God appeared instead.
• Kong Kangaroo and his monsters attacked Pig God, who swallowed them all and grew even larger.
• Gums burst through a wall and lunged at Pig God, who unexpectedly rolled clear of its bite.

Pig God’s hidden power awakened as he fought Gums, while Saitama and Josen learned that King and Genos had rushed ahead to challenge the Monster Association’s final boss. Saitama and Josen decided to clear the remaining Monsters before going to back them up.

• Pig God realized Josen’s power seed was strengthening his body and Gluttony abilities, then slammed Gums into the ground and charged him again.
• Saitama’s indigestion-fueled burp blasted a Monster away, and he admitted he had eaten too much at the buffet.
• Josen told Saitama that King and Genos had entered the Monster Association’s center to challenge the final boss.
• Josen clarified that King had dragged Genos into the fight, and Saitama concluded that both men were reckless.
• Saitama and Josen agreed to clear the Monsters around them quickly before backing up King and Genos.

Josen unleashed Wood Release: Deep Forest Emergence, transforming the battlefield around the Monster Association headquarters into a vast forest that captured and drained the monsters. As the heroes watched in astonishment, Saitama had already broken into the headquarters to reach Genos and King.

• Josen told Saitama to leave the aboveground battle to him and pointed out that Genos and King were at the center of the stone pillar.
• Saitama charged straight through the Monster Association headquarters’ base, leaving a human-shaped doorway as he ran inside.
• Josen used Clap Both Hands and summoned a colossal wooden Buddha before casting Wood Release: Deep Forest Emergence.
• The ground violently shook as enormous roots burst through the battlefield, destroyed buildings, and grew into a vast sea of trees around the headquarters.
• The trees bound the monsters in vines and drained their vitality, leaving them helpless while the heroes realized the forest was on their side.

The heroes inside the Monster Association fought off the monsters flooding the passages as a vast forest erupted outside and sent the invading creatures into a panic. At the Z City Hero Association Branch, Lanny and her staff saw aerial footage of the stone pillar transformed into a sprawling sea of trees.

• Monsters fleeing the growing forest crowded back into the Monster Association, trampling one another as they ran.
• Iaian, Bushidrill, and Okamaitachi held off more than a hundred monsters in a passage, cutting through the attackers with coordinated swordplay.
• Atomic Samurai effortlessly slaughtered the monsters surrounding him and considered letting his disciples graduate because they had grown stronger.
• An earthquake struck the Z City Hero Association Branch, and Lanny's staff saw footage showing lush trees covering the stone pillar and the surrounding ground.

The heroes faced a sudden forest in Z City while S-Class heroes fought inside the Monster Association. Saitama’s sneeze broke through to Gyoro Gyoro, just as King and Genos launched a surprise attack on Monster King Orochi.

• Lanny ordered the rescue teams to hold position until the heroes had scouted the forest, and the heroes in Z City credited Super Police with creating it.
• Flashy Flash easily overwhelmed Gale Wind and Hellfire Flame on a narrow stone bridge inside the Monster Association’s base.
• Saitama sneezed through the rock beneath the base, triggering a powerful earthquake that Josen’s force field contained, then spotted Gyoro Gyoro.
• Gyoro Gyoro monitored the battles across the base through its eye clones and psychic transmission.
• King and Genos surprised Monster King Orochi with an enhanced Super Spiral Rail Acceleration Incineration Cannon, but Orochi only lost some hair, which transformed into writhing snakes.

King and Genos fought Monster King Orochi and Gyoro Gyoro beneath the Monster Association’s base, with King unleashing his Supa Saiyan King mode and Genos attacking on his own. The battle continued as Genos redirected part of his bombardment toward Gyoro Gyoro, who raised a psychic barrier.

• Orochi healed his minor injuries and, at Gyoro Gyoro’s command, charged his serpent heads to fire Ultra-High-Temperature Breath at King and Genos.
• King increased his magnetic field power and took control of Genos’s movements, guiding both of them through the crossing energy blasts while Genos fired at Orochi.
• King activated Supa Saiyan King mode and struck Orochi with his 290,000-horsepower Imperial Destruction Barrage, smashing apart the serpent heads on Orochi’s body.
• Gyoro Gyoro watched Orochi’s injuries and predicted that the battle would trigger another transformation, while Genos grew impatient with her and took back partial control of his body.
• Genos redirected a rapid-fire Spiral-Accelerated Incineration Cannon barrage toward Gyoro Gyoro, who raised a psychic barrier to block it.

Gyoro Gyoro’s gravity field badly damaged Genos after King was struck by Orochi, but Saitama arrived and caught the falling cyborg. King blamed himself for failing to protect Genos and powered up as Gyoro Gyoro sensed his growing threat.

• Gyoro Gyoro absorbed Genos’s Incineration Cannon blasts into a gravitational force field and hurled it back at him.
• Orochi struck King, disrupting Genos’s flight long enough for the force field to sever most of his body while leaving his core intact.
• Saitama burst through a stone wall and found Genos tumbling into a crater.
• King apologized for failing to look after Genos, who insisted that he had underestimated the enemy.
• King’s King Engine began roaring as magnetic lightning flared, alarming Gyoro Gyoro while Saitama watched the two apologize to each other.

After Orochi recovered and evolved, King stayed behind to fight him while Saitama carried the battered Genos out of the chamber. Josen and Saitama sent Genos back to Dr. Kuseno for repairs and upgrades, leaving the battle to King and Saitama.

• Gyoro Gyoro urged Orochi to show off his latest evolution, and King and Genos saw that Orochi had fully recovered and gained armored, spiked snake heads.
• King asked Saitama to take Genos for treatment so he could challenge Orochi himself, and Saitama carried Genos toward the exit.
• Gyoro Gyoro stopped Orochi from attacking Saitama and focused on contacting Dragon-level executives as King fought Orochi in the underground chamber.
• Saitama and Josen laughed at Genos's battered appearance, then Josen used his power to send Genos back to Dr. Kuseno for repairs and an upgrade.
• Genos agreed to leave the battlefield, and Saitama said he would handle the fighting.

Josen brought the badly damaged Genos back to Dr. Kuseno’s laboratory, where he learned that the doctor was unsure he could safely transplant Genos’s brain into an Android body. Josen questioned why Dr. Kuseno had not asked him for help.

• Josen took Genos through a portal to Dr. Kuseno’s laboratory after Genos apologized for the trouble.
• Saitama found that the battlefield had been cleared of Monsters and declined Glasses’s invitation to eat with the recovering Heroes.
• Genos accessed the laboratory and Dr. Kuseno took him to the operating room for repairs.
• Josen pulled Dr. Kuseno aside and asked about the progress of Genos’s Android body project.
• Dr. Kuseno explained that he could not guarantee a safe brain transplant, and Josen asked why the doctor had not come to him.

Josen used his Psychic Powers and Infinity Power to transfer Genos’s soul and original brain into the prepared Android body, giving him a living human body and overwhelming new strength. Genos awoke astonished by his heartbeat and power, then wondered whether something about his new body was off.

• Josen reassured Dr. Kuseno and used Psychic Powers to open the cultivation chamber and lift out the Android body.
• Josen brought Genos’s damaged cyborg body from the repair chamber and told him he would handle the repairs.
• Josen stopped time in the laboratory and used Infinity Power to merge Genos’s soul and original brain into the Android body.
• Genos felt his new human heart beating and discovered that his body possessed far greater power than his cyborg body.
• Genos released a powerful aura that Josen’s Psychic Power field contained, then asked Josen whether something was unusual about his new body.