Chapter Summaries

Mizar returned Kaito’s Number Dragon to Yuma, then challenged Don Thousand alone to learn his power. Don Thousand changed Mizar’s Spell Card without playing a card, defeated him instantly, and absorbed his body, leaving Yuma and Nash to face him.

• Mizar told Yuma that Kaito had died after defeating him and gave Yuma the Number Dragon Kaito had entrusted to him.
• Mizar rejected the others’ concerns and flew to Don Thousand’s lotus to challenge him alone.
• Don Thousand and Mizar began a Duel, and Mizar summoned dragons before activating Dragon Emperor’s Demise to sacrifice his monsters and damage both Duelists.
• Don Thousand transformed Mizar’s Spell Card into Dragon Emperor’s Treasure, which inflicted lethal damage on Mizar and reduced his Life Points to zero.
• Mizar urged Yuma and Nash to defeat Don Thousand, then burst into light and was absorbed by Don Thousand.

Don Thousand revealed that the Numeron Network held the Numeron Code and threatened to destroy the surface world if it was damaged. Tetsuhiro entered the core to absorb its energy, then sent a clone to duel Don Thousand while he continued absorbing it.

• Don Thousand revealed that destroying the Numeron Network would release enough energy to destroy the surface world, and Astral recognized the power as the Numeron Code.
• Astral sacrificed himself to enter the core, but Eliphas pushed him out and took his place.
• Tetsuhiro entered the core, kicked Eliphas out, and began absorbing the Numeron Code with his monsters and Tenseigan Mode.
• Don Thousand attacked the core after noticing its energy draining, while Tetsuhiro absorbed the Numeron Code and called on Little Black to analyze it.
• Tetsuhiro created a clone and challenged Don Thousand to a duel, wagering the core, Don Thousand's deck, and the future of the Three Realms.

Tetsuhiro's clone faced Don Thousand in a Duel and mocked him into revealing the Numeron Gates' power, which threatened Astral World. After the clone stopped the Gates' first attack, Don Thousand summoned Numeron Chaos Gate Sunya and set up a devastating 8,000-damage attack for his next turn.

• Tetsuhiro's clone went first, ended his turns without playing cards, and taunted Don Thousand to summon his ace.
• Don Thousand summoned four Numeron Gates and used their power to expose Astral World, threatening to destroy its inhabitants if the clone took damage.
• Tetsuhiro's clone dismissed Don Thousand's attempt to make him feel guilty and used Hizashi Hyuga's effect to end the Battle Phase, sending Hizashi to the Graveyard.
• Don Thousand used Numeron Network to double the Gates' ATK and transform Numeron Gate Sune into Number C Numeron Chaos Gate Sunya.
• Don Thousand banished all monsters on his field with Sunya's effect, setting it to return on his next turn and inflict 8,000 damage.

Tetsuhiro's clone countered Don Thousand’s Numeron Network with a sequence of Naruto-themed cards, but Don Thousand negated his first move and turned its effect against him. The clone recovered and summoned Naruto and Iruka, leaving their next move unresolved.

• Tetsuhiro's clone used Glory of the Clan to summon Hinata Hyuga, Hanabi Hyuga, and Neji Hyuga, then tried to destroy Numeron Network.
• Don Thousand activated Numeron Counter from his Deck, negated Glory of the Clan, and replaced it with Family Feud, which destroyed Hyuga Hiashi and reduced the clone’s Life Points to 3,500.
• Tetsuhiro's clone used Graffiti on Hokage Rock after taking damage to summon Despised Fox Demon Boy LV1 and Lifelong Teacher Iruka.
• Despised Fox Demon Boy discarded a random card from Don Thousand’s hand, and Tetsuhiro's clone used Iruka’s effect to equip the boy with Ninja's Proof: Forehead Protector.

Tetsuhiro’s clone summoned Kakashi, Naruto, Sasuke, Sakura, Orochimaru, Itachi, and Kisame to disrupt Don Thousand’s plans and build a new Xyz Monster. The chapter ended with the spectators and Don Thousand stunned by the appearance of Akatsuki Nagato Uzumaki, a Number-less Xyz Monster.

• Tetsuhiro’s clone used Kakashi’s effect to banish Numeron Network, preventing Don Thousand from relying on it.
• Tetsuhiro’s clone activated Team 7 Assemble to summon Sasuke and Sakura, then banished them to summon Orochimaru.
• Tetsuhiro’s clone’s effects summoned Itachi and Kisame, and Kisame equipped Samehada to gain 500 ATK.
• Tetsuhiro’s clone Overlaid Orochimaru, Itachi, and Kisame to Xyz Summon Akatsuki Nagato Uzumaki.
• The spectators and Don Thousand questioned the unfamiliar monster and the cards that had produced it, and Tetsuhiro’s clone teased Don Thousand to guess where they came from.

Tetsuhiro's clone overwhelmed Don Thousand with a string of summons and attacks, reducing his Life Points to 700 while Might Guy's power continued to rise. Don Thousand began his turn just as Might Guy opened the seventh gate, leaving his ATK at 18,500.

• Tetsuhiro's clone summoned the Six Paths of Pain from his Deck and Synchro Summoned Might Guy using Kakashi and Iruka.
• Tetsuhiro's clone equipped Eight Gates Formation to Might Guy, opened the sixth gate, and raised his ATK to 3,700.
• Tetsuhiro's clone Link Summoned Mitsuki with two Tokens, then used Mitsuki's effect to Special Summon Orochimaru from the Graveyard and add a Polymerization-related card to his hand.
• Tetsuhiro's clone ordered the Six Paths of Pain to attack Don Thousand, lowering his Life Points from 4,000 to 1,700 before Numeron Wall stopped Nagato's attack.
• Tetsuhiro's clone used the effects of the Six Paths of Pain and Nagato to deal 1,000 more damage, then ended his turn as Naruto transformed into his younger-adult form.
• Might Guy opened the seventh gate and raised his ATK to 18,500 as Don Thousand drew a card for his turn.

Don Thousand summoned Numerounius and attacked Tetsuhiro's field, but Tetsuhiro's clone used the Six Paths of Pain and Orochimaru's defenses to withstand his effects. On the clone's turn, Naruto upgraded to Six Paths form and shared a powerful chakra cloak with his allies, leaving them ready to face Don Thousand's 10000-ATK monster.

• Don Thousand summoned Number C1000: Numerounius with 10000 ATK and attacked Naruto Uzumaki.
• Tetsuhiro's clone used the Six Paths of Pain to block Numerounius's attack, then sacrificed their energy to cancel its field-destroying effect with Super Shinra Tensei.
• Don Thousand tried to destroy Might Guy and clear the clone's back row, but Nagato Uzumaki and Orochimaru's Triple Rashomon prevented the destruction effects while the clone took 1000 damage.
• Tetsuhiro's clone upgraded Naruto Uzumaki through Levels 5 to 8, activating Sage Mode and Nine-Tails Chakra Link Mode.
• Naruto combined Sage Mode with his chakra link to reach 6400 ATK, then shared the cloak with his allies, raising their stats.

Tetsuhiro's clone and his allies fought Don Thousand's Numeron Country after Naruto destroyed the Numeron Network and inadvertently enabled its transformation. Sarada weakened the godlike monster at great personal cost, and Might Guy opened the Gate of Death, raising his attack to 185000 as the duel reached its next turning point.

• Naruto destroyed the Numeron Network with a Sage Art-Wind Release: Rasenshuriken, but Don Thousand used it as Overlay material to summon Numeron Country with 100000 attack.
• Yuma refused to give up, and Tetsuhiro's clone ordered Naruto to strike Numeron Country with a Tailed Beast Bomb, lowering its attack to 98500.
• Tetsuhiro's clone used Parallel Shinobi World Fusion to summon Sarada Uchiha, whose effect repeatedly reduced Numeron Country's attack while draining her own strength.
• Tetsuhiro's clone stopped Sarada after her attack fell to 400 and explained that her effect traded 1000 of her attack to reduce a target's attack by twenty percent.
• Might Guy opened the Gate of Death to protect Yuma and the others, raising his attack to 185000 while Tetsuhiro's clone revealed that Guy would be destroyed at the end of the turn and his controller would take damage equal to his attack.

Might Guy’s Night Guy nearly destroyed Don Thousand, but the unconscious fighter kept standing until Don Thousand surrendered and lost the duel. As Astral World and the surface world receded, Tetsuhiro emerged from the Core Gate stronger, prompting Nash to suspect his identity.

• Might Guy used Night Guy to destroy Numeron Network and nearly kill Don Thousand, though his attack left him charred and missing a leg.
• Naruto used Yang Power to stabilize Might Guy, who rose unconscious and continued fighting with red steam erupting from his body.
• Don Thousand surrendered, and his life points fell to zero.
• Astral World and the surface world began to disappear, and Exodia withdrew the barrier before approaching the Core Gate.
• Tetsuhiro emerged in a burst of orange light, and Exodia, Anubis, and a powerful monster congratulated him as their king.
• Nash suspected that Tetsuhiro was the mysterious man who knew the past and future.

After Don Thousand lost, he sent his chaos power into Tetsuhiro, who was unable to stop it. While Tetsuhiro absorbed the energy, his clone challenged Yuma and the others and covered the ruins in trees, leaving Kazuma and Tron watching from above.

• Don Thousand conceded defeat and gave Tetsuhiro the promised cards, then attacked him with chaos energy as he faded away.
• Exodia and Anubis tried to shield Tetsuhiro, but Don Thousand’s dark cards and chaos energy bypassed the Repulsive Force and entered Tetsuhiro.
• While Tetsuhiro absorbed the energy, his clone challenged Yuma, Nash, Astral, and Eliphas to a duel.
• Tori tried to stop the clone, but Yuma pulled her back as the clone used Wood Release: Nativity of a World of Trees.
• Kazuma and Tron watched from the atmosphere, and Tron reasoned that the clone was acting independently and had not harmed Yuma’s group.

Tetsuhiro stopped his unruly clone before it could duel Yuma, Nash, and Eliphas, then revealed his plan to reunite Astral World and Barian World and revive their dead. Nash and Eliphas remained wary, and Yuma’s father arrived just as Yuma agreed to give Tetsuhiro the Number Dragon.

• Tetsuhiro arrived at the ruins and absorbed his wooden clone before it could begin a duel with Yuma, Nash, and Eliphas.
• Tetsuhiro explained that he planned to merge Astral World and Barian World, arguing that balance would let both worlds prosper.
• Nash rejected Tetsuhiro’s plan to reunite the worlds and insisted that his bond with the Barian Emperors outweighed his ties to Yuma and the humans.
• Tetsuhiro promised Nash he could revive the Barian Emperors and promised Eliphas he could safely merge the worlds and help Astral World ascend.
• Tetsuhiro asked Yuma for the Number Dragon so he could revive everyone, and Yuma agreed before two people arrived and Yuma’s father pulled him behind him.

Tetsuhiro healed Tron and used his power to separate the Barian World from Earth, reviving many of the dead. He revived Kaito with the Number Dragon, then revealed he needed the complete Numeron Code to revive the Seven Barian Emperors and the others; as he began to disappear, Yuma struggled to choose between his friends and Astral offered to give Tetsuhiro what he needed.

• Tetsuhiro healed Tron, easing Kazuma and the others’ hostility, and explained that he had come to set things right.
• As Tetsuhiro began to disappear, he used his chaos energy to separate the Barian World from Earth and revive many dead people.
• Yuma handed Tetsuhiro the Number Dragon, and Tetsuhiro used it to revive Kaito on the moon.
• Tetsuhiro said he needed more of the Numeron Code to revive the Seven Barian Emperors and drew everyone into the Key of the Emperor to explain that he needed the Number monsters.
• Yuma broke down over the choice between saving his friends and helping Astral, and Astral offered to give Tetsuhiro what he needed.

Astral sacrificed himself to restore the merged worlds, then said farewell to Yuma before Tetsuhiro departed. In the Spirit World, Jaden’s companions faced the Dark World’s schemes while Tetsuhiro was lost in a parallel world; after Jaden and Yubel began their climactic duel, a mysterious figure appeared and disrupted their fusion.

• Astral gave Tetsuhiro what he demanded, causing the Astral World and Barian World to merge and split into beams that restored Mizar and Vector.
• Astral encouraged Yuma to smile and vanished in his arms, while Tetsuhiro and Little Black departed after revealing that the Duel Rules had grown stronger.
• Tetsuhiro traveled through other worlds, helped ZONE defeat the Meklord Army, obtained Stardust Dragon, and eventually found his original spatial node.
• In the Spirit World, Jaden’s friends fell into Bron’s trap, and Jaden became the Supreme King after Bron killed his companions; Jim later defeated the Supreme King alongside Jaden, awakening Jaden’s original personality.
• Amon refused to sacrifice Eiko for Exodia, while Jaden recovered his resolve and pursued Yubel after Caesar died confronting her.
• During Jaden and Yubel’s duel, a stone gate appeared and a dark figure struck Yubel, interrupting her exchange with Jaden as Super Polymerization pulled them both in.

Tetsuhiro returned to the group after surviving repeated trips through spatial rifts, and Little Black angrily confronted Jaden and Yubel over what had happened. Yubel denied causing Tetsuhiro’s ordeal, while her mention of Exodia led Tetsuhiro to send Exodia off to seek greater power.

• Tetsuhiro reunited with the group, and Yubel appeared behind Jaden after they emerged from Super Polymerization.
• Tetsuhiro accused Yubel of playing dirty and slapped her, while Jaden tried to defend her and ask Tetsuhiro to explain.
• Little Black recounted how Tetsuhiro had endured eight trips through spatial rifts and berated Jaden for assuming Tetsuhiro was safe and telling them to forgive Yubel.
• Yubel denied causing Tetsuhiro’s ordeal and explained that she had considered using Exodia to gain power to challenge him.
• Tetsuhiro sent Exodia to find the person who had resisted obtaining Exodia, and the group marvelled at Exodia and Little Black.

Tetsuhiro reunited with the others in the King's Chamber, comforted Jaden, and helped identify the Light of Ruin as the force behind their troubles. After the misunderstanding with Yubel was cleared up, Tetsuhiro taunted the hidden enemy until it finally appeared.

• Tetsuhiro told Jaden to review what had happened with Yubel, while privately warning Little Black that he suspected who was responsible.
• Tetsuhiro reunited with the others and praised Amon for resisting the darkness and refusing to sacrifice Eiko for power.
• Aster told Tetsuhiro about the sacrifices of Sho and the others, Jim's death, and Zane Truesdale's death, and Tetsuhiro reassured Jaden that they could be brought back to the Real World.
• Jaden identified the Light of Ruin as the likely culprit, and Tetsuhiro concluded it had tried to turn him and Yubel against each other.
• Yubel emerged after the misunderstanding was resolved, and Little Black apologized to her.
• Tetsuhiro taunted the hidden enemy above the King's Chamber, provoking a dark figure to appear with a thunderous crash.

Darkness appeared and revealed that it had drawn everyone from Domino City into the Inner World, while Tetsuhiro explained its origins and challenged its claim to be humanity’s savior. Darkness then unleashed light and dark energy that afflicted Sartorius, Yubel, and the others, leaving the group in chaos.

• Darkness appeared above Tetsuhiro and attacked, but Tetsuhiro blocked its dark energy with Repulsive Force and recognized it by several names.
• Darkness taunted Kaiba about Domino City, and Tetsuhiro used Byakugan before explaining the Origin Card, the two worlds, and how human thoughts gave rise to Darkness.
• Atem and Jaden summoned their allies, while Tetsuhiro revealed that Domino City’s population had been absorbed into the Inner World and might soon cease to exist.
• Darkness claimed it was purifying humanity, and Tetsuhiro argued that darkness depended on humans and that Jaden and he had helped empower the Inner World.
• Darkness triggered the Light of Ruin within Sartorius and afflicted Yubel and the others, causing them to turn against one another before Darkness unleashed a greater surge of light and dark energy.

Tetsuhiro defeated Darkness by forcing it into repeated duels, freeing those under its control and restoring the academy and its people. The students returned to their lives, Zane recovered, and after graduation Jaden left alone to train.

• Tetsuhiro used the power of duel rules to suppress Darkness and repeatedly force it into duels until its power was drained and it crumbled to ash.
• The people and monsters controlled by Darkness regained their senses, and Tetsuhiro and Yubel returned the academy and its inhabitants to Duel Island, where the deceased students were restored.
• Two days later, Jaden found Zane Truesdale on the shore, and Yugi took him to a hospital funded by Kaiba; after Zane recovered, he encouraged Syrus Truesdale to keep accepting Inotsume's challenges.
• The students resumed academy life and later faced their teachers in graduation duels; after Jaden drew with Yugi, he found Professor Crowler by the sea and invited him to duel.
• Jaden said goodbye to everyone and set out alone on a journey of training.

After drawing Hiten Mitsurugi-ryū and an insecticide, Tetsuhiro woke from a nightmare about a Golden-Hooped Staff battling a jade hand and received the Demon-Slaying Blade from Maya. He headed toward Kaiba Times Square to reach the 5D's Future World and find Madara, while a pursued woman raced through Domino City.

• Tetsuhiro used his targeted Lottery draw to obtain Hiten Mitsurugi-ryū and his monthly draw to obtain a can of insecticide.
• Tetsuhiro dreamed that a Golden-Hooped Staff and a jade hand wrecked the mortal world and empowered animals and people, then woke in a cold sweat.
• Tetsuhiro drove Maya to Kaiba Times Square after she delivered the newly forged Demon-Slaying Blade, which he tested and stored.
• Tetsuhiro planned to travel to the 5D's Future World to find Madara.
• A blonde woman sped through Domino City in a yellow Lamborghini SV while two men pursued her in a black Jaguar XJ6.

Maya drove Tetsuhiro past a chase that ended in a crash, and he joined the scene after stopping the fleeing car. The blonde driver mistook him for part of a staged rescue and insulted him, while Tetsuhiro resisted an urge to catch her spit and recognized the situation from a story.

• Maya warned Tetsuhiro that a yellow sports car was being forced into their lane, and Tetsuhiro used an invisible force to knock it and its pursuer aside.
• The yellow sports car crashed into a guardrail, while the black Audi tried to flee until a middle-aged man pinned its armed occupants with killing intent and iron spikes.
• Tetsuhiro arrived in his driverless pink Rolls-Royce, drawing the attention of the onlookers and the blonde woman who had escaped the crash.
• The blonde woman accused Tetsuhiro of staging a rescue with the two armed men and offered him a million yen as payment.
• When the woman spat at Tetsuhiro, he resisted the urge to catch it, recalled a story about a boy eating spit, and said, "Little Spit-Eating Story?"

Tetsuhiro met Kyoko Tachibana after a staged traffic accident and followed her to TN Software Company, claiming he wanted to prove his innocence. Maya stayed behind to deal with the gang members and the police while Tetsuhiro pursued Kyoko to her company.

• Tetsuhiro questioned two burly men after their cars blocked the road, while Kyoko Tachibana accused him of using a sleazy pickup routine and threw money at him.
• The banknotes stopped in midair, then flew into Tetsuhiro's hand and vanished as he restrained Maya from confronting Kyoko.
• Maya reported that the unconscious men belonged to a local gang hired to delay Kyoko, the president of TN Software Company.
• Tetsuhiro insisted on accompanying Kyoko to her company to clear up her misunderstanding, and she drove off ahead of him.
• Tetsuhiro told Maya to handle the accident and followed Kyoko to TN Software Company, where an overseas client was pressing the company to finish its product within four months.