Chapter Summaries

Key plot points and events

• Number Two takes F into the Virtual Combat Arena to test how well his abilities and equipment have carried over now that he is a Servant. The other Xiu Ers wait outside, where Number One tries—and fails—to draw them into conversation.
• Using a simulated Zera as a target, F activates his combat equipment and destroys the Demon almost instantly.
• Number Two finds that F is about thirty percent stronger than the other Doppelgangers. The main reason is Mana Burst, which enhances F’s physical abilities without noticeably draining his reserves.
• F explains that his Personal Skill Heart of the World connects him to the Root and provides an almost limitless supply of magic power. Its replenishment is slower than the original Xiu Er’s, however, so maintaining Mana Burst indefinitely is theoretically possible but impractical.
• Number Two tests Codex Opening, the most important part of an Ex-Machina’s capabilities. The algorithm works, and F can deploy his equipment, though deployment costs magic power. Some equipment effects have changed, particularly those of later-acquired Pseudo-Codices.
• Meanwhile, two unexpected arrivals appear high in the sky and begin falling toward the ground.

Character development

• F demonstrates that becoming a Servant has preserved much of his Ex-Machina functionality. He is powerful, composed, and able to give Number Two detailed reports on his abilities.
• Number Two takes a methodical, investigative role, carefully measuring F’s strengths and recording limitations.
• Number One is energetic and playful, contrasting with the other Xiu Ers’ reserved indifference.
• Karna watches the Xiu Ers’ unusual group dynamic and suspects they communicate telepathically.

Significant themes

• Identity and similarity: The Xiu Ers are versions of the same person, yet display noticeably different temperaments.
• Adaptation and continuity: F’s transformation into a Servant changes some abilities while leaving key systems, especially Codex Opening, intact.
• Power and limitation: F can draw on an immense source of magic, but his slower replenishment rate places practical limits on how much power he can sustain.

Character interactions

• Number One attempts to engage the other Xiu Ers, but they deliberately ignore his antics; their shared identity lets them recognize and avoid his behavior.
• Number Two and F work as collaborators, with F supplying information and Number Two analyzing it.
• Karna observes the group from the outside, trying to make sense of their apparent private communication.
• The chapter ends with two unidentified figures arriving abruptly—and dangerously—in the area.

Plot points and events

• Number Two and F review F’s abilities. Using the Codex of the Whispers drains Magic Power, but F’s connection to Number Two replenishes both of their energy. They consider updating F’s information on the Throne of Heroes so that future Masters are not accidentally drained.
• F demonstrates her Noble Phantasm, Codex Opening—the Ex-Machina’s “251 Algorithm.” It transforms her into a heavily armed flying fortress by unlocking her available weapons and permissions. The system has removed the usual restrictions, though F still has far fewer armaments than a full Ex-Machina collective. Number Two calls for a firepower test.
• The scene shifts to Kairi Shishigou and Mordred surveying a devastated forest clearing. Mordred recognizes the traces of the small black figure responsible and is furious.
• Fujimaru Ritsuka and Mashu arrive and explain that they are trying to repair a Singularity. Their communications with Chaldea have been cut, likely by whoever caused the anomaly, leaving them without outside support.
• Shishigou questions what restoring the Singularity would mean for the world. Ritsuka assures him it should return to normal without harming its inhabitants. Though cautious, Shishigou and Mordred agree to cooperate and bring the pair along.
• As the group proceeds, Ritsuka admits they have no reliable way to locate the abnormality without Chaldea’s help. Shishigou and Mordred privately doubt whether the pair can handle the situation, despite having chosen to trust them.
• Mordred abruptly summons her armor and shields Shishigou just as a powerful gale tears through the clearing, blowing debris around them.

Character developments and interactions

• Number Two thinks ahead about the risks F’s abilities could pose to a future Master, showing practical concern despite limited evidence about how the power works.
• F demonstrates the immense scale of her combat capabilities, while Number Two recognizes that Codex Opening is a last-resort weapon.
• Shishigou and Mordred begin cautiously trusting Ritsuka and Mashu, but remain wary of their reliability. Their private exchange reveals their close, candid Master–Servant bond.
• Ritsuka and Mashu work as a cooperative team: Ritsuka is earnest but becomes discouraged by their isolation, while Mashu encourages him to keep going.
• Mordred reacts strongly to the culprit’s traces and acts decisively when danger arrives, placing herself between Shishigou and the gale.

Significant themes

• Power and its cost: F’s information-gathering ability can consume a Master’s Magic Power, and her ultimate weapon was designed for desperate combat.
• Trust amid uncertainty: The group must decide whether to cooperate without full knowledge or communication.
• Isolation and dependence: Ritsuka and Mashu’s disconnection from Chaldea leaves them reliant on local allies.
• Loyalty and protection: Mordred’s instincts and actions emphasize her commitment to Shishigou, even as both question the newcomers’ competence.

Key plot points and events

• A violent wind and pillar of golden light herald the arrival of Xiu Er, the black-clad figure who previously defeated Mordred.
• Mordred immediately attacks her. Xiu Er stops Mordred’s sword with her bare hand and counters with spikes that erupt from the ground.
• Mashu shields Mordred from the first barrage, while Shishigou and Fujimaru Ritsuka recognize Xiu Er as the mysterious force disrupting the Holy Grail War.
• Xiu Er suddenly appears behind Ritsuka and asks whether he is Chaldea’s Master. Mordred protects the others, but Xiu Er’s attacks and defenses repeatedly outmaneuver the group; Shishigou’s bullets barely affect her.
• Xiu Er uses a silver greatsword and swordsmanship resembling Mordred’s to drive her back. As a rain of stakes threatens the entire group, Ritsuka directs Mashu to deploy her Noble Phantasm, Lord Chaldeas, creating a barrier around them.

Character developments

• Ritsuka shifts from observing the fight to making a decisive tactical call. He also suspects Xiu Er is connected to the Singularity and is unsettled by her apparent knowledge of Chaldea.
• Mashu proves her courage and reliability by protecting both Mordred and the group, ultimately raising her defensive Noble Phantasm.
• Mordred remains aggressive and confrontational, but also acts protectively, rescuing Ritsuka and Shishigou from Xiu Er’s surprise attack.
• Shishigou recognizes the danger Xiu Er poses and supports the fight with his firearms, though his attack has little effect.
• Xiu Er appears calm and emotionless, mostly countering rather than initiating attacks. Her abilities and familiar-looking fighting style deepen the mystery around her.

Significant themes

• Trust and teamwork under pressure: The group survives through quick cooperation, especially Ritsuka’s command and Mashu’s defense.
• Identity and hidden connections: Xiu Er knows about Chaldea, and Ritsuka senses traces of other people—including Mordred—in her.
• Power and uncertainty: Xiu Er’s near-invulnerability and control of the battlefield make her a formidable threat whose motives remain unknown.

Character interactions

• Mordred’s hostility toward Xiu Er drives the confrontation, while Mashu repeatedly intervenes to protect her.
• Mordred also protects Ritsuka and Shishigou, even as she dismisses their attempts to intervene.
• Shishigou explains Xiu Er’s role in the Holy Grail War’s chaos to Ritsuka.
• Ritsuka and Mashu coordinate effectively, culminating in Mashu’s deployment of Lord Chaldeas to shield the group.

Key plot points

• Mashu blocks Number Thirteen’s barrage of spikes. The fragments fall harmlessly afterward, revealing that the attack’s effects are unusually controlled.
• Mordred recognizes that Xiu Er is not the same opponent she previously fought, though she believes they belong to the same group. She holds back because she cannot ensure her allies’ safety.
• Fujimaru Ritsuka asks who Xiu Er is and why she attacked. She unexpectedly answers, identifies herself as “Number Thirteen,” and says she has come on the Commander Unit’s orders to contact Chaldea.
• Xiu Er reveals a doll-like face with bluish-purple features and silver metal components. She claims the earlier fight was self-defense because Saber attacked first.
• Mordred challenges her over the group’s violence and the danger posed to civilians. Xiu Er mostly ignores her, addressing Ritsuka instead.
• Xiu Er denies intending to destroy the Holy Grail War, saying her group came only to obtain something they seek. She then admits the group caused the Singularity—but refuses to leave until they find their objective.
• Ritsuka tries to understand and negotiate, while Mashu stays ready to protect him. Xiu Er even infers Ritsuka’s unspoken intentions from his expressions and speech.

Character developments and interactions

• Ritsuka remains cautious but hopeful that communication can prevent further conflict. His curiosity and awkwardness contrast with Xiu Er’s precise, unnervingly perceptive manner.
• Mashu consistently shields Ritsuka and watches Xiu Er for signs of another attack, while quietly checking on her Master.
• Mordred is suspicious and furious, especially at Xiu Er’s claims and disregard for her questions, but restrains herself under Shishigou’s influence.
• Shishigou keeps Mordred calm and watches the exchange, recognizing that Xiu Er’s arrival specifically concerns Ritsuka.
• Xiu Er is composed, literal, and mission-focused. Though she answers questions and shows no clear killing intent, she controls the conversation and refuses to abandon her mission.

Significant themes

• Communication amid hostility: Both sides have fought, yet Ritsuka seeks a peaceful explanation.
• Clashing interpretations of responsibility: Xiu Er calls her violence self-defense and denies intending to destroy the War, while Mordred judges her by the harm her group has caused.
• Uncertainty and mistrust: The characters cannot fully understand Xiu Er’s abilities or motives, and even her apparent openness does not resolve the danger.
• Mission versus negotiation: Xiu Er’s group caused the Singularity but will not leave until it finds what it seeks, making peaceful resolution uncertain.

Plot points and events

• Fujimaru Ritsuka asks Xiu Er about the intruders’ objective. Xiu Er says they will leave once it is achieved, but insists Chaldea cannot help them.
• Mordred senses something wrong with their surroundings, though she cannot identify it. She also grows increasingly irritated by Xiu Er’s abrupt, dismissive replies.
• Xiu Er reveals that the target has acquired an additional “item”: a crimson greatsword identified as Clarent, described as the sought-after manifestation of Servant power. Its appearance unleashes Xiu Er’s fighting spirit, ending any hope of peaceful negotiation.
• Mordred and Mashu prepare to fight while their Masters retreat. Before they can escape, Xiu Er releases a concealed Bounded Field: the landscape becomes a vast, featureless white expanse, trapping everyone inside.
• The Masters run across the open terrain as the Servants face Xiu Er. He indicates that he intends to capture and observe them rather than treat Chaldea cruelly.

Character developments and interactions

• Ritsuka remains composed and hopeful about a peaceful resolution, but quickly accepts the danger and withdraws so the Servants can fight.
• Mordred balances her anger at Xiu Er with practical judgment: helping the intruders leave could benefit her, but once the trap is sprung, she focuses on protecting the others and confronting the threat. She orders Mashu to get Ritsuka to safety.
• Mashu is frightened by Xiu Er’s strength but steadies herself and prepares to defend the group. She and Mordred coordinate despite their earlier tension over how Mashu addresses her.
• Shishigou trusts Mordred’s judgment and helps Ritsuka escape.
• Xiu Er/Number Thirteen remains controlled and analytical, but makes clear that the encounter is no longer a negotiation. He has deliberately concealed the Boundary and allows the Masters time to retreat before the fight.

Themes

• Peaceful intentions versus coercive action: Xiu Er claims the intruders will leave once their goal is met, yet traps Chaldea and points a weapon at them.
• Perception and hidden danger: Mordred’s intuition detects that something is wrong before the Bounded Field reveals itself.
• Duty and protection: Mordred and Mashu prioritize their Masters’ safety, while Ritsuka accepts a supporting role from the rear.
• Power and uncertainty: Clarent’s appearance reframes the intruders’ objective and exposes how little the others understand about their plans.

Chapter summary

Plot points and events

• Mordred attacks Xiu Er with a lightning-fast sword strike, but Xiu Er calmly meets her blade. Mordred’s anger briefly helps her gain ground, though hidden spikes rising from the pale floor strike her armor.
• Mashu returns to help and knocks Xiu Er aside with her shield. Xiu Er quickly retaliates, sending Mashu flying and keeping her from supporting Mordred.
• Mordred uses her helmet’s transforming parts to trap Xiu Er’s sword in her shoulder armor, then pulls away and disarms her. Xiu Er studies the tactic, records Mordred’s combat profile, and anticipates that Mordred cannot use it again.
• Xiu Er catches Mashu’s next shield attack and pulls her off balance. Mordred re-engages with two swords, but Xiu Er exploits her lack of experience with dual-wielding, then attacks through a strange opening in her body with a torrent of golden energy.
• Xiu Er scalds Mordred through her helmet, restrains her with Chains, and apparently captures her.
• Mashu encounters another Xiu Er—identified as Number Eleven, while the combatant is Number Thirteen. Number Eleven claims the collective intends to take Chaldea’s people safely and will release Mordred if she provides what they seek.
• Mashu realizes the Xiu Ers are members of a group, not a single individual. Number Eleven reveals that Mashu has already been moved out of the battlefield’s space. The gray tide shifts again, transporting her to a place where Mordred is bound and Chaldea’s group is gathered.
• Mashu spots the black-haired boy she calls “Senior” and rushes to him.

Character developments

• Mordred shows determination and tactical creativity, turning her armor transformation into an effective disarming trick. She can briefly match Xiu Er’s strength, but her unfamiliarity with dual swords and Xiu Er’s unusual abilities leave her vulnerable.
• Mashu persists in trying to protect Mordred despite being repeatedly thrown aside. When captured, she stays composed enough to question Number Eleven, even as she suspects a larger trap.
• Xiu Er / the numbered individuals demonstrate calm adaptability, rapid tactical learning, and a coordinated ability to move people between spaces. Number Eleven presents itself as more diplomatic than Number Thirteen, but Mashu has reason to distrust its assurances.
• The black-haired boy is revealed to be present with the captured group, prompting Mashu’s immediate concern and relief.

Significant themes

• Adaptation and counter-adaptation: Mordred’s improvised tactic works once, but Xiu Er records and adjusts to it.
• Trust and deception: Number Eleven promises safety, yet the group’s earlier aggression and use of spatial displacement make its intentions uncertain.
• Collective identity and hidden scale: The reveal of multiple numbered Xiu Ers changes the threat from a single opponent to an organized force.
• Protection under pressure: Mashu and Mordred continue trying to defend one another despite being outmatched and separated.

Character interactions

• Mordred and Xiu Er engage in a fast, tactical duel marked by taunts, brute force, and escalating countermeasures.
• Mashu repeatedly intervenes to aid Mordred, but Xiu Er redirects or disables her, forcing Mordred to fight alone.
• Number Eleven restrains Mashu’s shield and attempts to negotiate, while Mashu challenges the group’s motives and questions why it cannot resolve matters peacefully.
• The chapter ends with Mashu reuniting with the black-haired boy amid the displaced and captured group.

Key plot points and events

• Mashu reunites with Ritsuka and, overwhelmed with relief, tackles him in a tight hug. She also confirms that Shishigou is safe.
• Shishigou reports that the unconscious Masters are not in immediate danger, though some remain unable to wake. The attackers have targeted Servants rather than killing or injuring Masters.
• Ritsuka and Shishigou compare what they learned from the attackers: Ritsuka and Shishigou encountered Number Twenty, while Mashu met Number Eleven, who tried to persuade her to stop resisting.
• They conclude that the numbered attackers appear to be identical, self-aware beings, and that there may be at least twenty of them. Shishigou speculates that their “Commander Unit” might coordinate the group rather than possess great combat power, but admits this is only a theory.
• The captured Masters are all from the Black faction; they say the attackers struck their castle and brought them here. The Red faction’s Masters are still unconscious.
• Joan, bound nearby, interrupts the discussion after realizing she has been overlooked. Ritsuka explains that he knows another version of her from a previous mission; Joan is intrigued but accepts the explanation without dwelling on it.
• Ritsuka tells Joan that the attackers have created a Singularity and are seeking Servants, not the tournament’s prize. With Chaldea communications still unavailable, the group must investigate on their own. They consider summoning another Servant to improve their odds.

Character developments and interactions

• Mashu shows how deeply she cares for Ritsuka and Shishigou, rushing to embrace them before regaining her composure. She confirms she was not harmed by Number Eleven.
• Ritsuka stays focused on the group’s immediate needs, checking Mashu’s condition and redirecting speculation toward finding a way out.
• Shishigou balances humor and concern, then contributes practical analysis. His wary relationship with the Black faction Masters limits what he can learn from them.
• Joan is initially overlooked but asserts herself and becomes a key person to consult. She and Ritsuka share information despite the unusual fact that he recognizes her from another encounter.
• The group’s trust and cooperation are evident: Ritsuka shares what he knows with Joan, while Mashu and Shishigou compare their experiences openly.

Significant themes

• Care and relief amid danger: Mashu’s impulsive reunion highlights the emotional bonds sustaining the group.
• Uncertainty and tactical reasoning: The characters must form and test theories about the attackers without reliable communications or complete information.
• Identity across encounters: Joan’s familiarity to Ritsuka, despite being a different version of the same Heroic Spirit, raises questions about recognition and continuity.
• Escalating imbalance of power: The attackers’ numbers and abilities appear to overwhelm the group, making alliances and a possible new summoning increasingly important.

Plot points and events

• Fujimaru Ritsuka’s group has been captured after an enemy ambush and confined in a soundproof Bounded Field. Their captors have left them unharmed, but they cannot escape: even Joan and the local Magi have found no way to break free.
• Joan says the enemy’s chains resist brute force and that the Lord’s voice—and likely Chaldea’s communications—has been blocked.
• She points out a floating cube that appears to monitor the captives. She also describes “Number One,” the guard who left it behind, as unusually childlike and more human than the other numbered figures.
• Ritsuka and Shishigou suspect Number One may be the enemy’s Commander Unit. Their hope of simply avoiding the enemy and reaching the Singularity’s anomalous source is complicated by their lack of information and allies.
• Mashu recounts that she reached Mordred during her fight with Number Thirteen, but was knocked out of the battle after Mordred helped her escape. Shishigou reveals that he used his last Command Spell to recall Mordred, but it failed. He can still sense that she is alive.

Character developments and interactions

• Ritsuka stays composed and focused on finding a way out, questioning Joan and working with Shishigou to interpret what they learn.
• Joan admits the enemy overwhelmed her and expresses frustration and humiliation over being captured. Despite her gentle manner, she recalls Number One with strong disgust.
• Shishigou remains practical, weighing Joan’s information and the danger to Mordred.
• Mashu is mentally exhausted after the battle and briefly drifts out of the discussion. Ritsuka notices and gently brings her back in; she then explains how she was separated from Mordred.
• Ritsuka and Shishigou think alike about Number One, while the others’ limited strength and separation from Mordred leave the group vulnerable.

Significant themes

• Isolation and helplessness: The Bounded Field blocks communication and escape, while the group’s strongest allies are restrained or separated.
• Observation and uncertainty: The cube’s surveillance makes the captives feel watched, and the enemy’s motives and true command structure remain unclear.
• Resourcefulness under pressure: With direct combat and Command Spells proving ineffective, the group must rely on information, cooperation, and finding the source of the world’s deviation.

Chapter 149 Summary

Key events

• Fujimaru Ritsuka’s Command Spell fails to move him and the others out of the Bounded Field. A golden vortex appears, and Joan recognizes it as the enemy group’s spatial-transfer magic. Before anyone can respond, the floating cube flies into Ritsuka’s chest.
• The scene shifts to Xiu Er’s fight with Shiro Amakusa. Badly injured, Amakusa is struck by golden sword energy and buried beneath a collapsing earthen wall.
• Xiu Er retrieves and scans Amakusa’s tachi, then uses earth manipulation to pull him from beneath the soil. She intends to read his memories to learn about the previous Holy Grail War.
• Amakusa feigns unconsciousness and launches a final attack. He sacrifices his right arm to set up a black-hole-like technique, but Xiu Er opens a passage and uses a massive golden key to cancel his magic. A spear then pierces his heart, leaving him defeated.

Character developments and interactions

• Ritsuka and the others are increasingly trapped and uncertain: their escape attempt fails, and the enemy’s unfamiliar teleportation ability adds another danger.
• Joan remains alert, warning Ritsuka about the vortex and identifying its function.
• Xiu Er is methodical and controlled, treating Amakusa as both an opponent and a source of information. She continues fighting even after he surprises her with a concealed counterattack.
• Amakusa shows tactical ingenuity and desperate resolve. Despite severe injuries, he uses his remaining strength and a coordinated magical trap to try to kill Xiu Er, but she overcomes it.

Significant themes

• Entrapment and powerlessness: The failed Command Spell and the Bounded Field leave Ritsuka’s group without an apparent escape.
• Persistence under impossible odds: Amakusa continues fighting despite devastating injuries.
• Knowledge versus combat: Xiu Er seeks to extract Amakusa’s memories, turning the confrontation into both a battle and an interrogation.
• Unfamiliar technology and magic: The golden vortex, cube, key, and anti-magic effects suggest capabilities the characters do not yet understand.

Chapter 150 Summary

Plot points and events

• Xiu Er finds Shiro Amakusa near death, with only minutes of life left. He asks why she disrupted the Holy Grail War and what she wants from the Great Holy Grail.
• Xiu Er rejects the assumption that she came for the Grail, then uses magic to read Amakusa’s memories. The process takes just over a minute and leaves him fatally damaged.
• From his memories, she learns that Amakusa’s wish was to save all humanity. She judges his intentions good, but recognizes that the Grail would fulfill the wish in a way that would bring catastrophe to humanity and disrupt human order.
• With the battle over, Xiu Er leaves through a Space Gate. The surrounding flames begin to die down.
• At 5:10 a.m., she returns to the Boundary, where many of her Doppelgangers have gathered with Avicebron. He reports that the Noble Phantasm and furnace core are ready, and asks to proceed with its birth.
• Xiu Er schedules the event for an hour later. She then turns her attention to the Doppelgangers and notices that one has disabled her facial-expression system. The group falls into an awkward silence.

Character developments and interactions

• Xiu Er remains detached and practical, treating Amakusa as a source of information rather than engaging with his suffering. Yet learning his memories lets her recognize the sincerity and benevolence behind his wish, even as she rejects its likely consequences.
• Amakusa dies still grieving the failure of the cause for which he prepared for sixty years. His questions reveal his confusion about Xiu Er’s motives, but he mistakes her response as deliberate mockery.
• Avicebron now regards Xiu Er as a trusted partner because she helped fulfill his wish. His eagerness to bring his creation into the world contrasts with Xiu Er’s calm decision to delay.
• Xiu Er and the Doppelgangers share an eerie, comic moment: their identical appearance makes their synchronized attention unsettling, while the disabled expression system singles one out.

Significant themes

• Good intentions versus harmful outcomes: Amakusa’s desire to save humanity is compassionate, but the Grail’s method of granting it would cause disaster.
• Conflicting perspectives: Xiu Er’s genuine confusion about Amakusa’s assumptions clashes with his belief that she is acting deceptively.
• Detached judgment and responsibility: Xiu Er avoids judging others’ wishes in principle, but intervenes when their consequences threaten human order.

Key plot points and events

• Xiu Er meets with her Doppelgangers while waiting for the dimensional device to finish charging; it is only at 46%, so departure will take another day or two.
• She learns that preparations involving Red Assassin’s Noble Phantasm are 54% complete. Reports from the Doppelgangers assigned to the world show that contact with Chaldea went smoothly and her instructions were followed.
• Xiu Er discovers that Number One, assigned to guard a prisoner, has delayed the task. He admits he sent Karna to retrieve Fujimaru Ritsuka but has not brought him back yet.
• Xiu Er orders Number Four to have Karna bring Ritsuka immediately, then warns Number One not to let amusement interfere with his duties.
• She turns her attention to F, whose data upload has completed, and begins assessing the difficulty of manifesting the Foreigner class.

Character developments

• Xiu Er remains controlled and practical. She values the Doppelgangers’ independent minds, but expects them to carry out assignments reliably and directly.
• Number One is revealed as playful and unusually invested in making Xiu Er show emotion. He has tried 24 times without success and uses excuses and diversions to avoid admitting he delayed his assignment.
• Number Two privately finds Number One’s antics and the group’s chat amusing, though he suppresses his laughter.
• F appears distinct from the other Doppelgangers: the successful data upload makes normal use possible, and F can readily understand Xiu Er’s thoughts.

Significant themes

• Duty versus personal initiative: Number One’s desire to help Xiu Er conflicts with the task he was assigned.
• Identity and individuality: The Doppelgangers share Xiu Er’s nature and abilities, yet display distinct personalities and make independent choices.
• Emotion and humanity: Number One tries to draw out Xiu Er’s feelings, while she remains largely unaffected and treats the effort as secondary to her plans.
• Control and trust: Xiu Er can review the Doppelgangers’ actions but usually refrains unless they disrupt her objectives.

Character interactions

• Xiu Er questions Number One, who first claims that keeping his face blank is tiring, then tries to evade scrutiny with excuses and a change of subject.
• The other Doppelgangers silently and privately comment on Number One’s repeated failures, teasing him while remaining outwardly composed.
• Xiu Er bypasses Number One’s delay by giving Number Four a direct order concerning Karna and Ritsuka.
• Xiu Er and F exchange a glance that conveys their understanding without further explanation.

Plot points and events

• Xiu Er confirms that a Class Disguise is needed to fool a ritual’s selection process. She reports that Project “Override” is ready, and the System begins it.
• A golden passage opens near the group. At the same time, a fast-moving block strikes Fujimaru Ritsuka and knocks him down. He appears unharmed, but the block vanishes.
• Ritsuka reveals that he saw the block enter his body. Mashu panics and examines him; Shishigou uses magecraft to check him. Ritsuka reports no pain or other changes, but the group cannot determine what the object is doing.
• Joan says the block was released only hours earlier by “Number One” and had seemed to be a magical surveillance device.
• Karna emerges from the golden passage. Joan explains that puppets attacked him as well as her, and the group realizes he was apparently captured despite his great strength.

Character developments and interactions

• Ritsuka stays honest with his companions despite the frightening news, trusting them enough to disclose what happened. His ordinary human body—and apparent ability to survive the impact—remains unexplained.
• Mashu reacts protectively and urgently, briefly shaking Ritsuka in her distress before realizing she may hurt him. Her fear underscores how much she values him.
• Shishigou responds with practical suspicion, examining Ritsuka and questioning his unexpected lack of injury.
• Joan is concerned but admits she has no explanation for the block. She recognizes that Ritsuka and Mashu know Karna from another Singularity.
• Karna’s arrival surprises both Chaldeans and Joan, while his apparent defeat raises the group’s estimate of the puppets’ power.

Significant themes

• Trust and honesty: Ritsuka chooses to tell his companions the truth rather than hide a potentially dangerous change.
• Protection and vulnerability: Mashu’s alarm reflects the danger Ritsuka faces as a human among powerful beings, even as his survival defies expectations.
• Uncertainty and escalating threat: The mysterious block, the unexplained portal, and the puppets’ apparent capture of Karna leave the group facing dangers they do not yet understand.

Plot and events

• Karna enters the barrier and announces that his Master has ordered him to bring Fujimaru Ritsuka in. Joan realizes Karna’s former Master is present: Number One had previously taken that Master’s Command Spells and status.
• Karna ignores Joan’s questions and identifies Ritsuka. When Mashu tries to protect him, Karna sweeps her aside, grabs Ritsuka, and pulls him through a Golden Vortex.
• On the other side, Ritsuka finds himself surrounded by countless identical, expressionless dolls. Karna leads him through the crowd to a distinctive, smiling doll.
• The doll introduces itself as Number One. Ritsuka assumes he is the dolls’ commander and Karna’s Master, but Number One corrects him and points him toward the actual Commander Unit—the apparent force behind the Singularity.
• In a private group chat, Number One laughs at Ritsuka’s mistake. Xiu Er reprimands him for taking over Karna’s task and threatens to assign him to a post or confine him in the “shadow.” Number One immediately backs down.

Character developments and interactions

• Ritsuka is frightened by the dolls but steadies himself, reasons that Karna’s Master must be among them, and approaches Number One cautiously. His initial assumptions about Number One prove wrong.
• Mashu acts protectively, raising her shield and pursuing Karna, but arrives too late to stop the abduction.
• Joan remains alert and authoritative despite being bound, connecting Karna’s situation to the earlier transfer of Command Spells.
• Karna follows his new Master’s order with calm efficiency, disregarding Joan and forcibly escorting Ritsuka.
• Number One appears cheerful and approachable, but is playful and enjoys misleading Ritsuka. He is not the Commander Unit or Karna’s Master.
• Xiu Er exercises authority over Number One, whose joking demeanor gives way to alarm when threatened.

Significant themes

• Misleading appearances and mistaken identities: The smiling Number One seems to be the leader, but the true Commander Unit is someone else.
• Power and control: Command Spells and Master status can be transferred, while Karna’s obedience shows how authority shapes Servant behavior.
• Fear and composure: Ritsuka’s unease around the uncanny dolls gives way to cautious problem-solving.
• Humor amid danger: Number One’s teasing and the chat exchange provide comic relief within a tense abduction.

Plot points and events

• Number One teases Xiu Er over communications. She mutes him, though she remains indulgent because they are effectively the same person.
• Fujimaru Ritsuka approaches Xiu Er, the leader of the identical dolls. The others clear a path, and he asks why she captured him and wants to contact Chaldea.
• Xiu Er says her goal is to contact Chaldea, but denies creating the Singularity for that purpose. She claims the Singularity was accidental and that she sought Servants’ power instead.
• Ritsuka questions her account and motives. Xiu Er explains that she wants the Servants’ power to become stronger, and argues that armed confrontation is the most efficient way to obtain it—even if she loses.
• Xiu Er unnerves Ritsuka by accurately guessing his thoughts, insisting she is observing him rather than using mind reading. Their discussion is interrupted when she asks whether he needs rest and conjures a chair.

Character developments

• Ritsuka remains composed and inquisitive despite being in enemy territory, pressing Xiu Er for answers. Her blunt, unsettling logic frustrates and confuses him, but he recognizes that arguing with her is unlikely to change her mind.
• Xiu Er is revealed as literal-minded, candid, and strategically focused on gaining strength. She seems willing to converse and show consideration, yet treats combat as a practical route to her goal.
• Number One continues his irreverent teasing, while Xiu Er’s reaction shows both exasperation and unusual tolerance toward him.

Character interactions

• Xiu Er and Number One share a familiar, teasing dynamic: she mutes him but does not truly take offense.
• Ritsuka and Xiu Er conduct a tense interrogation-like exchange. He challenges her explanations; she answers plainly, sometimes unnervingly anticipating his thoughts.
• Karna listens nearby alongside Number Four, observing the conversation without intervening.

Significant themes

• Strength and conflict: Xiu Er sees gaining power as her central purpose and combat as an acceptable means, regardless of the outcome.
• Miscommunication: Ritsuka seeks coherent motives, but Xiu Er’s blunt, mechanical answers deepen his confusion.
• Intent versus consequence: Xiu Er denies intending to disrupt the Holy Grail ritual, while Ritsuka emphasizes that her actions did so anyway.
• Identity and selfhood: Xiu Er’s bond with Number One—both treated as aspects of the same person—complicates the usual distinction between individuals.

Key plot points

• Exhausted by Xiu Er’s unusual behavior, Fujimaru Ritsuka agrees to continue questioning her. He learns that, despite her strange manner, she does not appear openly hostile.
• Xiu Er says she wants to contact more Servants, gain power, and witness other worlds. She does not reveal how she learned about Chaldea.
• She explains that she captured the other Masters both to protect them from harm and to use them to make their Servants fight at full strength through Command Spells.
• Ritsuka discovers that Xiu Er is an outsider from another world and that her arrival helped create the Singularity. She says she summoned herself through an illegal summoning, though she withholds further details about her connection to the Throne of Heroes.
• When Ritsuka asks directly whether she is blocking Chaldea’s communications, Xiu Er admits it and agrees to remove the interference. Communications return, and Dr. Roman and Da Vinci immediately contact Ritsuka, relieved that he is safe and surprised he has already found the anomaly.

Character developments and interactions

• Ritsuka shifts from wary, overwhelmed questioning to cautious trust. He finds that Xiu Er responds best to plain, direct questions, and her honest answers make conversation easier.
• Xiu Er remains concise and emotionally difficult to read, but she shows practical concern for Ritsuka’s condition and complies with his request to restore communications. Her cooperation appears partly strategic: she wants to make future contact less troublesome.
• The reunion with Roman and Da Vinci reassures Ritsuka, while their concern underscores his isolation during the encounter. Xiu Er watches quietly as he reconnects with Chaldea.

Significant themes

• Trust and transparency: Xiu Er’s candid answers build limited trust, even as she withholds important information.
• Human and nonhuman communication: Ritsuka learns to bridge their differences by speaking plainly rather than relying on social cues or indirectness.
• Protection alongside exploitation: Xiu Er frames the captured Masters’ treatment as both protective and useful, leaving the morality of her actions uncertain.
• Outsiders and disruption: Xiu Er’s arrival from another world illustrates how an outsider can destabilize a world and create a Singularity.

Plot points

• Xiu Er interrupts Fujimaru Ritsuka’s call with Chaldea and takes over the communication channel. She projects a body made of data into Chaldea, startling Dr. Roman and Da Vinci, then says she will explain Ritsuka’s situation.
• While communicating with them, Xiu Er tries to identify Chaldea’s world coordinates so she can open a gate directly, but the attempt fails. Ritsuka waits separately and returns to the others through a passage Xiu Er opens.
• Mash rushes to embrace Ritsuka, relieved and shaken after seeing him taken away. Shishigou checks that he appears unharmed.
• Xiu Er follows Ritsuka back through the passage. Later, Ritsuka learns that Roman and Da Vinci have agreed to let her join them, reasoning that humanity needs all available strength.

Character developments and interactions

• Xiu Er shows her direct, forceful style, but reassures Ritsuka and explains that she is not deceiving him. She also demonstrates her ability to project across worlds, though her attempt to pinpoint Chaldea fails.
• Ritsuka grows accustomed to Xiu Er’s unusual methods and trusts her enough to let her handle the explanation. He feels awkward about discussing her actions in front of people harmed by the dolls.
• Mash reveals how deeply Ritsuka’s disappearance affected her; she clings to him, afraid he might vanish again.
• Roman and Da Vinci are alarmed by Xiu Er’s strange entrance, but accept her offer to join Chaldea because of the stakes.

Significant themes

• Trust amid uncertainty: Ritsuka’s confidence in Xiu Er develops despite her intimidating methods.
• Protection and vulnerability: Mash’s reaction underscores the emotional cost of Ritsuka being taken from the group.
• Pragmatism in a crisis: Chaldea is willing to accept an unconventional ally when humanity’s survival is at stake.
• Limits of power: Xiu Er’s cross-world projection works, but her attempt to locate Chaldea precisely does not.

Key plot points and events

• Chaldea restores contact with Fujimaru Ritsuka and Mashu. Roman explains that Da Vinci and the others have unanimously agreed to accept Xiu Er’s help, despite how unsettlingly she entered their systems.
• Xiu Er confirms she intends to finish the singularity soon. Her plan is to wait for Red Assassin to complete her Noble Phantasm, prepare a venue, and test Black Caster’s Noble Phantasm; she expects everything to be over within twelve hours.
• Xiu Er says she has not directly used the Great Holy Grail, though she analyzed it to reproduce its function and perform an illegal summoning.
• F, a Servant version of Xiu Er, asks Fujimaru to form a temporary contract with him. After an unusual approval process involving his eye color changing, the contract is made.
• Xiu Er says that other versions of herself are handling preparations. Fujimaru then asks about their creator, and Xiu Er identifies her as an Old Deus—an immensely powerful being they could never surpass.

Character developments and interactions

• Fujimaru is wary of Xiu Er but accepts Chaldea’s decision and cooperates with F. He remains curious about Xiu Er’s plans and origins.
• Mashu is bewildered by how quickly their former enemy has become an ally, and her opinion of Xiu Er has worsened because of Xiu Er’s earlier actions. She is also surprised by F’s behavior.
• Xiu Er remains composed and pragmatic, unconcerned with others’ judgments. She has promised to release the imprisoned Masters safely, but refuses to spare Mordred.
• Roman and Da Vinci see Xiu Er’s power and abilities as valuable, despite their unease. Roman particularly notes how useful her teleportation and pocket dimensions would be.
• F is reserved and difficult to read. He treats contracting with Fujimaru as a simple experiment, then departs immediately afterward.

Significant themes

• Trust amid danger: Chaldea accepts help from someone whose methods are alarming because her power may be essential.
• Pragmatism and moral limits: Xiu Er offers cooperation and safety to the Masters but remains inflexible about Mordred.
• Identity and creation: The chapter raises questions about what counts as “using” the Grail and what it means for machine-like beings to become Servants.
• Power and origin: Xiu Er’s revelation about her creator establishes a vast hierarchy of beings and hints at the scale of her world.

Plot points and events

• Mashu is stunned when Xiu Er is described as a “God-made creation.” Xiu Er recognizes that this could apply to her kind, but keeps quiet because the God in question may not be the one Mashu means.
• While Ritsuka and Mashu talk with Xiu Er in her Boundary, mission reports arrive. They confirm that Kether Malchut has been recorded, analysis of the Hanging Gardens of Babylon is underway, Spartacus has been killed and his Noble Phantasm recorded, and Mordred and Chiron have been captured. The reports also indicate that the mission objectives were changed under an agreement.
• With the mission apparently complete, Ritsuka asks to return to reality. Xiu Er opens a Golden Gate leading to Shishigawara, a tourist town now safe because the Holy Grail War has been brought under control. She advises Ritsuka and Mashu to eat breakfast and look after their health.
• Ritsuka and Mashu are surprised by Xiu Er’s unexpectedly practiced, caring manner. When Ritsuka remarks on it, Xiu Er falls silent. He decides not to press the subject and takes Mashu through the gate.
• The scene shifts to the captured Mordred and her Master, Shishigou. Mordred admits she gave everything she had but was still decisively defeated by her opponent’s seemingly unfair ability to copy her skills. She is also embarrassed that the opponent stopped short of killing her and brought her back bound.
• Mordred asks whether the Holy Grail War has ended. The chapter closes as she looks toward a Saint who has just returned, leaving the answer unresolved.

Character developments and interactions

• Ritsuka remains composed after the revelation about Xiu Er, showing how much her training has toughened him. He also demonstrates trust in her, while gently teasing her about her unusual attentiveness.
• Mashu shares Ritsuka’s surprise at Xiu Er’s caring side and at the claim that she is a divine creation.
• Xiu Er is shown as more than a formidable, analytical fighter: she actively considers Ritsuka and Mashu’s well-being. Her silence at Ritsuka’s observation hints at a personal sensitivity or history she does not explain.
• Mordred accepts her defeat more readily than before, acknowledging that she fought at full strength and could not win, though she remains blunt and proud. Her teasing exchange with Shishigou keeps their familiar rapport intact.

Significant themes

• Trust and vulnerability: Ritsuka trusts Xiu Er enough to leave through her portal, while Xiu Er’s quiet reaction suggests that care and personal feeling lie beneath her detached exterior.
• Defeat and dignity: Mordred is forced to recognize the gap between her strength and her opponent’s, while struggling with the humiliation of being spared and captured.
• Mission closure and transition: The reports signal that the conflict is nearing its end, but the final question leaves the war’s actual status—and the consequences of its control—open.

• Xiu Er takes control of the disrupted Holy Grail War. Joan explains that she no longer wants the ritual to continue, especially after learning of Shiro Amakusa’s plans, which she rejects as false “salvation.” Xiu Er then announces that her group will complete the war in the participants’ place, offering the Masters safe passage home while warning that anyone who stays will no longer be protected.
• The Masters choose whether to withdraw. Most leave through Xiu Er’s portal. Kairi Shishigou stays because he still has a wish to entrust to the Grail. Though surprised, Mordred decides to stay beside him, turning the pair into the only original participants who continue.
• The next stage is arranged. Xiu Er clarifies that her group does not want the Grail itself and will not personally fight; the remaining battles will be between Servants, with Numbers One through Six replacing the other combatants. Joan chooses to remain as Ruler and supervise. Xiu Er gives her the Great Holy Grail and says she will remove the source of the Singularity, allowing it to repair itself and the ritual to conclude.
• The story shifts back to Chaldea. After breakfast, Fujimaru Ritsuka and Mash receive Xiu Er’s brief message summoning them to rendezvous. The following episode opens with their return to Chaldea, where Romani, Da Vinci, and the staff welcome them. Da Vinci warmly embraces Mash, while Ritsuka politely avoids the same treatment.
  Character developments and interactions: Joan’s knowledge of Amakusa’s intentions strengthens her opposition to his plan, while she remains committed to overseeing the war. Shishigou’s resolve to pursue his wish leads him to accept grave danger; Mordred’s loyalty and adventurous spirit prompt her to stay with him. Xiu Er acts as a detached but considerate authority, giving the Masters a choice and providing them a safe exit, though she keeps her group’s true motive private.
  Significant themes: The chapter explores choice and sacrifice, contrasting the safety of withdrawal with Shishigou and Mordred’s willingness to risk everything. It also questions who has the right to define “salvation,” and shifts the Holy Grail War from its original contestants toward a carefully managed replacement conflict.

Key plot points and events

• Fujimaru Ritsuka and Mashu return to Chaldea after their journey through the Singularity. Ritsuka privately feels the mission was anticlimactic, despite their encounter with the mastermind and his efforts to persuade her to show mercy.
• Roman welcomes them back, tells them to rest, and remains concerned about the mysterious cube Xiu Er embedded in Ritsuka’s body. Da Vinci reminds him to come for a medical examination.
• Mashu wonders why Xiu Er summoned them only to send them back, and why Da Vinci and Roman seemed unconcerned. Ritsuka speculates that Xiu Er may have her own way of traveling between worlds and treats the cube as a locator, though Mashu objects to his casual attitude toward his safety.
• Fou tries to investigate Ritsuka, but Ritsuka laughs, reassures Mashu that he is fine, and hurries off to his room.
• Five hours later, Roman contacts Ritsuka about the checkup—but says it is no longer necessary. Still half-asleep, Ritsuka accepts a cream bun and milk from someone beside his bed before realizing Xiu Er is sitting there. Her unexpected presence startles him; she greets him with a tentative “Good morning.”
• At breakfast, Da Vinci teases Ritsuka about his startled reaction. Xiu Er cannot understand why he was frightened, since she detected no danger. A blonde Servant joins the conversation, drawing Xiu Er’s attention.

Character developments and interactions

• Ritsuka is tired and self-deprecating about the mission, but remains easygoing—even about the object inside his body. His flustered reaction to finding Xiu Er in his room provides comic contrast.
• Mashu is glad to be back and protective of Ritsuka, questioning both Xiu Er’s unexplained choices and his disregard for his health.
• Roman acts as a caring doctor and friend, balancing concern over the cube with an offer of food and a later medical checkup.
• Xiu Er is still mysterious and matter-of-fact. She provides Ritsuka with breakfast, but interprets his alarm analytically rather than emotionally.
• Da Vinci serves as an amused observer, teasing Ritsuka and lightening the scene. Fou shows concern by trying to inspect Ritsuka, though he does not understand the others’ reactions.

Significant themes

• The chapter contrasts human emotion with detached logic: Ritsuka is startled, Mashu worries, and Da Vinci jokes, while Xiu Er evaluates reactions in terms of measurable danger.
• Trust and concern run through the group’s interactions, especially in Roman and Mashu’s attention to Ritsuka’s wellbeing.
• The mysterious cube and Xiu Er’s ability to appear in Ritsuka’s room keep the risks and possibilities of dimensional travel in the background.