Chapter Summaries

Lancelot accepted his guilt and fought Saber to keep her from seeking the Holy Grail, while Duke claimed victory and entered the Grail. As the other Servants vanished, Saber and Lancelot parted, and Duke faced a strange trial inside the Grail.

• Lancelot resolved to embrace his sins, fought Saber, and argued that her fallen retainers had chosen to die for their king.
• Saber refused to abandon her wish and tried to save Lancelot, but he attacked her at full speed while Archer watched from a treetop.
• The Holy Grail descended in the valley after Rider opened it, and Duke immersed his mind in it as Kiritsugu Emiya and Kirei Kotomine watched.
• Archer confronted Duke and demanded a duel, but Duke ignored him and entered the Holy Grail, which acknowledged him as the final victor.
• Archer began to disappear, while Saber asked Lancelot whether he regretted his life; he explained that he had sought punishment, and they parted as she faded away.
• Inside the Holy Grail, Duke faced a trial involving a beach, the sea, and beautiful women.

Duke entered the Root after rejecting the Holy Grail’s temptations and resisting All the World’s Evil, but found himself back in the Unknown Space. He was then summoned into a Magician’s room, where a twin-tailed girl asked whether he was her Servant, and he denied it despite the Command Spells on his hand.

• Duke rejected the Holy Grail’s seductive illusions and flew toward the Root.
• All the World’s Evil tried to corrupt Duke, but he resisted and was expelled from the Black Mud.
• Duke entered the Root and woke in the Unknown Space, where he met a newcomer in a green Daoist robe before being transported away.
• Duke fell into a Magician’s room and recognized the summoning circle beneath him.
• A black-haired twin-tailed girl asked Duke if he was her Servant, and Duke said he was not while looking at the Command Spells on his hand.

Duke appeared in Tohsaka Rin’s home during the Fifth Holy Grail War and insisted that he was a Master, not her Servant. When Rin and Red Archer confronted him, Duke recognized Red Archer’s hidden identity and challenged him to reveal his true name.

• Duke woke in Tohsaka Rin’s home, realized he had arrived in a version of the Fifth Holy Grail War, and told Rin he was not her Servant.
• Rin’s summoned Red Archer arrived after an explosion, and Duke identified himself as a Master by showing his Command Spell.
• Red Archer prepared to capture Duke, but Duke warned that a fight would destroy Rin’s home and Holy Relic.
• Duke claimed his Eyes of Origin could see Red Archer’s identity and urged him to tell Rin his true name.
• Red Archer denied being anyone important, while Rin grew suspicious of her Servant’s concealed identity.

Duke defeated Red Archer and captured Tohsaka Rin, then released them and took over the Tohsaka Family’s living room. He tempted Red Archer with a Golden Brick, and Rin ordered her Servant to pick it up and serve him tea.

• Duke overwhelmed Red Archer with his magical energy and knocked him through the villa wall with Frostmourne.
• Duke captured Tohsaka Rin with his hair and threatened Red Archer, who offered his life in exchange for hers.
• Duke tossed Rin back to Red Archer and declared he had no interest in them.
• Duke made Red Archer brew Black Tea and threatened to reveal his true name if he refused to serve him.
• Duke summoned a Golden Brick and offered it as a reward for service, so Tohsaka Rin ordered Red Archer to pick it up.

Duke told Tohsaka Rin and Red Archer that he came from a parallel world after reaching the Root, and warned Red Archer that his future had changed. He left Rin furious at Red Archer after revealing a scandalous possible future for him.

• Duke enjoyed Red Archer's resentful leg massage while Tohsaka Rin accepted a Golden Brick and offered Archer's services for sale.
• Duke introduced himself as a magician from another world's Fourth Holy Grail War and claimed he had reached the Root.
• Duke told Red Archer that his future in this world was different from the one he remembered, then joked that Red Archer would build a harem and die at eighteen.
• Duke claimed he had been close to Rin and Red Archer's fathers and said Red Archer would get Rin pregnant, abandon her, and flirt with other women.
• Tohsaka Rin attacked Red Archer with the Golden Brick and stomped him while Duke advised her not to use a Command Spell to make him kill himself.

Duke reunited with Tohsaka Rin and declined her offer to ally in the Holy Grail War, hinting that his own Servant was still bound to him. He summoned Lancelot from another world at the Matou Family villa, where Lancelot recognized him and Duke ordered him to prepare for battle.

• Tohsaka Rin punished Red Archer with Golden Bricks and declared that she planned to find the current Archer and castrate him.
• Tohsaka Rin proposed an alliance with Duke, but he refused and said he was not alone because his contract with Xiaolan remained intact.
• Tohsaka Rin followed Duke with Red Archer to discover who his disciple was, but they lost track of him.
• Duke reached the Matou Family villa and used his Command Spells to summon his knight Lancelot from another world.
• Lancelot began to address Duke as his Master, but Duke called him Xiaolan and told him to grab a weapon so they could chop people up.

Lancelot learned that he had arrived in a parallel world ten years in the future and would fight in another Holy Grail War, while Duke reassured him that Saber was not among the current Servants. Duke and Lancelot went to the Matou estate to intervene in Sakura’s situation, where Rider confronted them.

• Lancelot asked Duke whether Saber in this war was King Arthur, and Duke insisted that Arthur was not among the current Servants.
• Duke proposed bulldozing their way through the war and said they would go help Sakura that night.
• Shinji Matou took control of Rider after Sakura transferred her Command Spells and Master rights to him.
• Rider left Sakura to investigate after a Servant’s presence triggered the Matou estate’s barrier.
• Duke froze the estate grounds and called out for an old man, then Rider’s dagger struck at him and was stopped by an Ice Wall.
• Duke told Lancelot to attack Rider, leaving Lancelot staring at him in confusion.

Duke and Lancelot attacked the Matou Family's castle to rescue Sakura, while Lancelot fought Rider outside. Duke reached the second floor but encountered Matou Zouken, whom he claimed he had killed before.

• Duke identified Rider as Medusa and revealed her Noble Phantasm, prompting her to attack him.
• Lancelot caught Rider's weapon and took control of it, then fought her while Duke entered the castle.
• Rider summoned Pegasus and unleashed Bellerophon against Lancelot.
• Duke reached the stairs leading to Sakura's room and confronted Matou Zouken.
• Duke told Matou Zouken that this was not the first time he had died at Duke's hands.

Duke confronted Matou Zouken at the Matou estate and revealed his overwhelming power during Rider’s attack. He unleashed the Five-Emperor Dragon against Rider, then turned back to Zouken as their fight resumed.

• Duke mocked Matou Zouken and claimed he had come to fulfill Matou Kariya’s final wish, but Zouken dismissed his story and vowed to kill him.
• Duke flicked a compressed mass of air at Matou Zouken, blasting his body apart into countless insects.
• Lancelot crashed into the corridor after fighting Rider and apologized to Duke, while Rider appeared astride Pegasus and launched her Noble Phantasm.
• Duke blocked Rider’s attack with an Ice Wall that transformed into a colossal dragon head, then summoned the Five-Emperor Dragon to overwhelm her.
• Duke ordered Little Five to take Rider out, then turned back to Matou Zouken and challenged him to continue their fight.

Duke defeated Matou Zouken and found Sakura imprisoned in the Matou estate, then promised to protect and care for her as her teacher. When Sakura begged him to spare Rider, Duke relented but warned Rider to protect her Master.

• Lancelot restrained Matou Zouken’s insects while Duke spread holy flames across the Matou estate and burned them away.
• Duke found Sakura hiding in a room and ordered Lancelot to kill everyone else in the castle.
• Duke comforted Sakura and promised to spoil her, and Sakura accepted him as her teacher.
• The wounded Rider attacked Duke to reach Sakura, but he restrained her before Sakura intervened and begged him to spare her.
• Duke released Rider, pulled off her blindfold, and gripped her neck while ordering her to protect Sakura.

Duke gave Sakura a new body, destroyed Matou Zouken, and let Rider’s attempt to probe him turn into a humiliating dream encounter. The next morning, Sakura woke refreshed while Rider hid what had happened and vowed to get revenge.

• Duke subdued Rider, recovered the Command Spells, and built Sakura a new body with Magecraft Factors.
• Duke froze Sakura’s original body and destroyed it, eliminating the Matou Zouken hiding within.
• Rider entered Duke’s dreams to investigate his motives, but Duke turned her Erotic Dream against her and pursued her through a dream within a dream.
• Sakura woke peacefully the next morning and noticed Rider looked exhausted, while Rider concealed the truth and resolved to take revenge that night.

Duke took Lancelot around Fuyuki City, bought a clinic, and encountered Lancer pursuing Caster. Recognizing the wounded, Masterless Medea, Duke chose to follow her instead of Lancer’s decoy, hoping to recruit her before she met Souichirou Kuzuki.

• Duke concealed Sakura’s Command Spells, then took Lancelot out to familiarize himself with the city and avoid alerting him to Saber’s arrival.
• Duke and Lancelot found a clinic near Fuyuki Port, and its owner agreed to sell it to Duke.
• In New City, Lancelot sensed a Servant, and Duke identified him as Lancer, Cú Chulainn, and followed him while searching for his Master.
• Lancer pursued Caster across Fuyuki Bridge, but Caster sent a shadow duplicate toward Mount Enzou to confuse him.
• Duke told Lancelot to follow whichever route Lancer did not choose, then recognized Caster as Medea and decided she was more valuable than the Reversed Light Sword.

Duke and Lancelot cornered the exhausted Caster, whom Duke identified as Medea, and Duke offered to make her his Servant in exchange for her knowledge and a chance to fulfill her wish. After replenishing her mana and healing her injuries, Duke pressed her to form a contract, leaving Medea wary of his overwhelming power.

• Caster escaped Lancer but was pursued by Duke and Lancelot until her mana ran out in a forest clearing.
• Duke identified Caster as Medea, the Witch of Betrayal, and offered her a place as his Servant.
• Medea warned Duke that she had killed her previous Master and might betray him, but Duke accepted the risk.
• Duke revealed that he wanted Medea for her magical knowledge rather than her battlefield strength, and she questioned why he would trust her.
• Duke lifted Medea's hood, touched her forehead, and poured mana into her until her injuries healed and her reserves were restored.
• Medea, astonished by Duke's seemingly limitless mana, hesitated over drafting a contract while Duke urged her to proceed.

Sakura welcomed Duke home and met Caster, whom he had taken in as another Servant, while Rider reacted angrily to their arrival and to Duke’s attention shifting toward Caster. In private, Caster explained Age of Gods magecraft to Duke, who altered his vocal system with Life Return so he could learn Divine Language.

• Sakura made dinner for herself, Duke, and Rider while Rider sensed an unfamiliar Servant approaching with Duke.
• Duke returned with Caster, and Rider threatened her after Caster called Duke her Master and complimented Sakura.
• Duke stopped Caster from attacking Rider and told her she could not use mana for combat inside the house without his orders.
• After dinner, Rider saw Duke take Caster into a room protected by a magecraft barrier and left in anger.
• Caster explained High-Speed Divine Language to Duke and said he would need surgery to reproduce its incantations.
• Duke scanned Caster’s vocal organs, used Life Return to alter his own body, and challenged her understanding of being a Magician.

Caster nearly used Rule Breaker to sever her contract with Duke, but she stayed after sensing Rider stealing Duke’s magical energy and secretly entered their dream. The next morning, Duke rejected Caster’s plan to summon Assassin and promised to take her on patrol that night.

• Caster prepared to sever her contract with Duke using Rule Breaker, but decided to remain with him because she expected him to win the Holy Grail War.
• Caster entered Rider’s dream and watched Rider drain Duke’s magical energy, then returned to the dream later to keep observing them.
• The next morning, Rider escorted Sakura to school, while Lancelot remained unaware of the new Servant and felt optimistic about their chances.
• Caster proposed turning the Matou Family castle into a Magecraft Temple and altering Assassin’s summoning so Assassin would become her Servant.
• Duke rejected the plan to summon Assassin, citing the risks of an illegal summoning, and told Caster he would take her on patrol that night.

Duke took Caster into Fuyuki City and planned to stir up the Holy Grail War while disguising himself as Gandalf. Meanwhile, Tohsaka Rin and Emiya Shirou learned about the war and encountered Illya and Berserker on their way home.

• Sakura stayed behind at the Matou Family estate while Duke left with Caster and entrusted her protection to Lancelot.
• Duke dismissed Caster's cautious battle plan, told her to watch from the sidelines, and transformed himself into an old man he called Dual-Wielding Berserker Gandalf.
• Duke reflected on how his presence had changed the war, including Red Archer's loss of standing and Tohsaka Rin taking Emiya Shirou to meet Kirei Kotomine.
• Tohsaka Rin worried that Sakura's sudden change in mood meant something had happened to her, while Saber and Red Archer followed her and Emiya Shirou.
• A Berserker appeared in the road ahead, and Illya greeted Emiya Shirou as Saber moved to protect him.

Illya ordered Berserker to attack Emiya Shirou and his allies, and Berserker’s overwhelming strength and defenses forced Saber and Red Archer into a desperate fight. Elsewhere, Duke and Caster sensed the battle’s explosive mana, leaving Duke irritated that his claim of a peaceful night had been exposed.

• Illya identified herself as Berserker’s Master and commanded Berserker to kill the others.
• Tohsaka Rin assessed Berserker’s immense parameters, while Saber struggled with the knowledge that Illya was Irisviel’s daughter.
• Berserker charged Emiya Shirou, but Red Archer’s arrows diverted him and failed to injure him.
• Berserker attacked again, and Saber blocked his axe-sword before being driven backward by his strength.
• Red Archer bombarded Berserker with arrows, but Berserker emerged unharmed and continued the fight.
• Duke and Caster sensed the battle’s mana surge, and Duke grew angry when Caster teased him about calling it a minor exchange.

Saber gained the upper hand against Berserker by using the cemetery’s terrain, while Rin and Shirou arrived and Archer discovered Medea and Gandalf nearby. After Gandalf identified the combatants as Heracles and King Arthur, Medea decided she wanted to capture Saber, and Duke warned her not to spoil a surprise for Xiaolan.

• Saber lured Berserker among the gravestones and used her agility to wound him while avoiding his powerful attacks.
• Rin and Shirou reached the cemetery, and Archer warned Rin that Medea and Gandalf were nearby.
• Rin ordered Archer to test the Caster, but Gandalf casually knocked aside his arrow and spotted him from three kilometers away.
• Gandalf identified Berserker as Heracles and Saber as the King of Knights, prompting Medea to question why King Arthur was a girl.
• Medea insisted that she wanted to capture Saber, while Duke told her not to tell Xiaolan because he wanted to surprise her.

Duke, calling himself Caster Erik Gandalf, challenged Berserker after revealing that the raging Servant was Heracles. He overwhelmed Heracles in close combat, leaving the other Masters and Medea stunned as the battle continued.

• Duke and Medea arrived at the cemetery, interrupting Saber and Berserker's fight and leaving the three groups facing off.
• Illya provoked Medea, and Duke defended his Master before announcing that he would fight Berserker himself.
• Duke introduced himself as Erik Gandalf and identified Berserker as Heracles, astonishing Saber, Rin, Shirou, and Red Archer.
• Illya ordered Berserker to kill Duke, but Duke met his axe-sword with a fist and sent him flying into a grave mound.
• Duke launched Berserker into the air with punches and kicks, then drove him into the ground with a devastating axe kick, leaving Medea questioning her profession.

Duke killed Berserker, but Berserker revived through his Noble Phantasm, revealing that he had twelve lives. Duke refused Medea’s call to retreat and forged a High-Vibration Particle Sword, beginning a fierce clash with Berserker.

• Duke drove his feet through Berserker’s chest, apparently killing him, and cleaned his clothes with magic.
• Berserker revived, and Saber explained that his Noble Phantasm resurrected him at the moment of death.
• Duke inferred that he needed to kill Berserker twelve times, while Illya warned that the attack that killed him would not work again.
• Duke extracted iron from the earth and forged a High-Vibration Particle Sword, prompting Red Archer to identify him as a Heroic Spirit from the future.
• Duke’s vibrating blade cut Berserker’s axe-sword in half, and the two began a fierce close-quarters fight.