Chapter Summaries

Saigō revealed his demonic true form and overwhelmed Dimitrie’s fused Familiars with a single strike that devastated the ocean. After defeating him, Saigō decided to use Dimitrie as a test subject to investigate how endless life caused erosion and despair.

• Dimitrie fused himself with all seven Familiars and unleashed their combined attacks against Saigō.
• Saigō sent Aurora and the other Vessels of the Night Lord of Blazing Light away, then transformed into his towering demonic form.
• Saigō invoked the inverted Avesta and struck the sea, creating a colossal vortex and destroying Dimitrie’s fused Familiar body with the shockwave.
• Saigō returned to human form and told the battered Dimitrie that the True Vampires were far more powerful than he had imagined.
• Saigō refused to kill Dimitrie and brought out his Fated Death dagger, proposing a test about how endless life eroded its bearers.

Saigō gave Dimitrie a Fated Death that restored his fear of death and fixed his lifespan at ten years, then continued gathering the Night Lords of Blazing Light in the Nerepsi Autonomous Dominion. Liana Karyana’s younger sister Veridia arrived, and Liana made her kneel before Saigō.

• Saigō stabbed Dimitrie with a dagger and gave him a Fated Death that changed his vampire lifespan to ten years, restoring his fear of death and desire to live.
• Dimitrie thanked Saigō for making him feel mortal again, then knelt and asked to kiss Saigō’s feet; Saigō told him to leave.
• Saigō considered whether erosion made the long-lived lose their former selves, but set aside the Eternal Life Trap and Ship of Theseus questions because he lacked experience.
• In a hotel in the Nerepsi Autonomous Dominion, Saigō lounged with Aurora and the Night Lords of Blazing Light while Liana Karyana knelt before him.
• Veridia Karyana entered carrying a suitcase, checked on her sister, and glared at Saigō; Liana ordered her to kneel, and Veridia obeyed.

Saigō obtained The Original from the Karyana sisters and confronted Balthasar Zaharias over the three Night Lords of Blazing Light in his possession. He exposed Balthasar’s plan to control the Fourth True Ancestor, then had Number One kill him, warning that the Feast of Blazing Light was not a contest where the victor could make a wish.

• Liana apologized for Veridia’s behavior, and Saigō forgave her before accepting The Original from the sisters.
• Saigō recounted the fall of the Karyana family and promised to avenge them by slaughtering the Fuh of the Nerepsi Autonomous Dominion.
• Saigō visited Balthasar Zaharias, who offered him the three Vessels in exchange for using his sister as the Fourth True Ancestor’s resurrection medium.
• Saigō exposed Balthasar’s deception, revealing that Balthasar had sacrificed his sister and implanted a system in her body to control the Fourth True Ancestor.
• Balthasar transformed into a young man and threatened to compete with Saigō for the Feast of Blazing Light, but Number One tore out his rib and killed him.
• Saigō rejected Balthasar’s belief that the Feast of Blazing Light granted a wish to its victor and said it was no Holy Grail War.

Saigō traveled to the Ilvas Demon Special Zone while discussing Sendou Aya’s Witch faction and String God Island’s future with her and Nangong Nayue. As the Feast of Blazing Light approached, he ordered preparations for String God Island’s independence and left open the possibility of having a child with Aya.

• Saigō killed Balthasar, leaving only one vessel before the Night Lord of Blazing Light could be born.
• Sendou Aya told Saigō that roughly two-fifths of LCO had joined her and that she planned to destroy the remaining members and reclaim their Grimoires.
• Sendou Aya revealed that she had destroyed the DNA and spell prepared to create a child from her genetic material, then said she wanted to bear Saigō’s child.
• Nangong Nayue and Sendou Aya exchanged barbs before Saigō redirected their video call to String God Island’s independence.
• Saigō explained that he intended to direct the Feast of Blazing Light’s sacrifices toward nations hostile to String God Island, and Nangong Nayue agreed to proceed with independence preparations.
• Saigō told Sendou Aya that they could consider having a child, but he doubted his demonic body possessed human genetic material.

Dishampa learned that Saigō, the Primogenitor she was bound to serve, was approaching the Ilvas Demon Special Zone just as she and Chiga Teruhito prepared to destroy it. Saigō's aircraft was barred from entering the zone's airspace, leaving his arrival uncertain.

• Saigō promised the Karyana Family sisters that disaster would strike Nerepsi during the Feast of Blazing Light and ordered them to serve him on the way to the Ilvas Demon Special Zone.
• Dishampa returned to her apartment with food for Kari, Loki, and Lain, the children she had rescued from abuse and experimentation.
• Dishampa told the children that Chiga Teruhito was preparing a ritual to destroy the Ilvas Demon Special Zone, then sensed that the Primogenitor was coming.
• Dishampa explained that she was bound to swear loyalty to the Primogenitor and worried about what would happen to the children after she was gone.
• Chiga Teruhito promised to care for the children and said he would try to delay Saigō while they completed their plan.
• A co-pilot told Saigō that their aircraft could not enter the Ilvas Demon Special Zone's airspace, and Saigō asked what was happening there.

Saigō entered the sealed Ilvas Demon Special Zone after Number Three’s Familiar tore open a path through the Feng Shui barrier, and found the island being destroyed by the Four Holy Beasts. Dishampa completed her mission and met Saigō, who identified the ritual as the work of the missing Feng Shui master Chiga Teruhito.

• Saigō ordered Number Three to use Dragon-Snake Mercury to tear a passage through the barrier, and the plane entered Ilvas in mist form.
• The Four Holy Beasts rampaged through Ilvas while Dishampa used her power to make Kugani Shizuri stab Kugani Shinako, then forced Shinako to strike Shizuri.
• Saigō arrived with the eleven other Night Lords of Blazing Light, and the flames around him froze.
• Saigō questioned Dishampa about the Feng Shui Technique and concluded that Chiga Teruhito, the missing Treasure of the East, had created it.

Saigō offered the children, Chiga Teruhito, and the Holy Order survivors refuge on String God Island and pressured the Nun Knight to protect Ilvas’s remaining residents by joining them. The Nun Knight faced the choice of abandoning her hatred and rebuilding the Holy Order, while Saigō continued laying the foundations for Nangong Nayue’s rule.

• Dishampa admitted that Chiga Teruhito had created the Feng Shui Technique, and Chiga arrived with the children he had rescued.
• Chiga explained that he and Dishampa destroyed Ilvas because its Demon Sanctuary persecuted demons, and Saigō invited the children and Chiga to settle on String God Island.
• Chiga accepted Saigō’s offer after the children insisted on staying with him and Dishampa.
• Saigō offered Kugani Shinako and Kugani Shizuri a place on String God Island and urged them to rebuild the Holy Order and save Ilvas’s surviving residents.
• Kugani Shinako condemned Saigō as a demon after he made the residents’ rescue depend on her choice, and Saigō welcomed the insult as praise.

Saigō ended the threat to the Ilvas Demon Special Zone, ordered its survivors sent to String God Island, and took the twelve Vessels to the World Tree Game before the Feast of Blazing Light. There, he used his Supreme Sovereign authority and Rune’s Gift to make Aurora and the others creations of Nazarick, giving them a possible way to escape their destined deaths.

• Saigō used Amber of the Minotaur King to split the Dragon Vein and stop Chiga Teruhito’s ritual, then used White Steel of the Water Spirit to restore the damaged island and heal Kugani Shinako.
• Saigō ordered Kugani Shinako to gather the survivors for transport to String God Island, while Chiga Teruhito and the children departed and the Vessels prepared for the Feast of Blazing Light.
• Saigō told the Vessels to accompany him to the World Tree before the Feast, and he brought them into the game through the dark space connected to the Mother of Evil Gods.
• Saigō used his unused Supreme Sovereign creation authority and Rune’s Gift to add Aurora and the other Vessels to the Great Tomb of Nazarick as Familiar creations.
• Aurora realized she had crossed into another world and reacted with surprise.

Saigō used Rune’s Gift to turn Aurora and the other Night Lords of Blazing Light into twelve powerful Familiars, then decided to return to Nangong Nayue’s world after learning more about this one. Outside his room, Albedo clashed with the Familiars over their presence and traded insults with Dishampa.

• Saigō confirmed that Aurora had crossed into another world, and Dishampa said the Night Lords already understood their mission through Nazarick’s knowledge.
• Saigō used Rune’s Gift to free Aurora and the other Night Lords from the Feast of Blazing Light and make them permanent skills and Familiars.
• Saigō reflected on World Items and his plan to reverse Zoroastrian doctrine, then chose to return to Nangong Nayue’s world after gathering information.
• Albedo greeted Saigō outside his room, then angrily demanded to know why Aurora and the other Night Lords had emerged from it.
• Aurora and Dishampa rebuked Albedo, and Dishampa called her a crooked-mouthed gorilla, provoking her anger.

Saigō gained a new invitation letter and decided to send it to Momonga, disguising it with information about the former members of Ainz Ooal Gown so Momonga would open it. He checked the game system’s messages, where Momonga was now his only remaining friend, and the chapter ended as the World Tree Game’s decline was described.

• Saigō realized that his new invitation letter had become possible because he had gained power from Natsuki’s world.
• Saigō reasoned that powerful recipients might fear opening his earlier letters, while Momonga would be unlikely to recognize the danger.
• Saigō decided to send the new invitation letter directly to Momonga and include information about Ainz Ooal Gown’s former members to persuade him to open it.
• Saigō checked his game messages and saw that Momonga was his only remaining friend in the system.
• The narration noted that World Tree Game was already in decline by its eighth year of operation.

Saigō replied to Momonga’s letters and sent him a mysterious invitation, while Momonga reflected on Saigō’s advice to investigate magic in the New World. After saving Carne Village, Momonga found a black slip bearing an unfamiliar woman’s portrait and the symbol of Hermes.

• Saigō learned that Demiurge and Shalltear had not yet reported back and sent Albedo to familiarize the Night Lord of Blazing Light with Nazarick.
• Saigō read Momonga’s account of rescuing Carne Village, replied with advice about researching magic, and tossed a special black invitation into the void.
• Momonga received Saigō’s reply in Carne Village and decided to study magic and martial arts while remaining cautious about threats and the Great Tomb’s NPCs.
• Momonga, using the name Feifei, left Sebastian to help the villagers and regretted choosing his casual-sounding name.
• Momonga found a black slip near the dead Slane Theocracy captain and recognized the symbol of Hermes on it.

Momonga used a mysterious invitation and arrived in Zoroaster's Void Sanctuary, where the Dark Lord’s divine presence overwhelmed him and stripped away his game-given powers. Saigō explained the sanctuary’s creation myth to Nangong Nayue, whose fate had become bound to Zoroastrianism.

• Momonga recognized Tabula Smaragdina’s emblem on a black invitation, activated it, and was transported to a dark, mist-filled space.
• Momonga met Nangong Nayue, who identified him as an Undead and explained that the place was connected to a powerful being.
• The Dark Lord appeared, and Momonga collapsed in terror as his game-granted abilities failed and he became Suzuki Satoru again.
• Saigō addressed Momonga by his real name and created a vast temple called Zoroaster’s Void Sanctuary, giving Nangong Nayue a seat.
• Saigō explained how good and evil produced Void and Fūqi, and told Nangong Nayue that the invitation had entwined her fate with Zoroastrianism.

Momonga faced Saigō in the Void Sanctuary, where the Dark Lord bound him to a contract and threatened the people he cared about if he failed to meet its demands. Back in Carne Village, Momonga resolved to grow stronger and protect Nazarick, though he remained shaken by the existence of enemies he could not defeat.

• Saigō terrified Momonga, made him find his voice by threatening his friends, and declared that he had signed an agreement with the Dark Lord.
• Nangong Nayue warned Momonga to take the contract seriously, then left the Void Sanctuary to return to Saigō.
• Momonga vowed to become stronger and protect Nazarick and Zarathustra from harm.
• Momonga returned to the ruined Carne Village, where Sebastian waited for his orders.
• Momonga struggled to hide his fear after realizing that his cautious methods could not overcome every powerful being in this world.

After recognizing his weakness, Momonga asked Sebastian to accompany him as he explored the world and to advise him as he strengthened his resolve. Saigō left Albedo in charge of Nazarick while he planned to address Natsuki’s situation, and reassured Albedo of her importance to the Great Tomb.

• Momonga refused to use Nazarick’s resources to rebuild the village and accepted Sebastian’s suggestion to seek Zarathustra’s counsel.
• Momonga asked Sebastian to travel with him and help him build strength of character, and Sebastian gladly agreed.
• Saigō observed Momonga’s resolve to grow and planned to address Natsuki’s situation before returning to explore the world.
• Saigō ordered Albedo to manage Nazarick while he and Momonga were away and to report news from Shalltear and Demiurge.
• Albedo asked to serve Saigō directly instead of assigning work to the Pleiades, but Saigō told her that overseeing Nazarick was her most important responsibility.

Saigō arranged the evacuation of Ilvas Demon Special Zone’s residents and laid out a plan to provoke Island Nation into a war that would enable the Feast of Blazing Light and begin Witch’s Night. String God Island then declared itself the Night Empire, and Island Nation’s leaders realized that the witches possessed the Fourth True Ancestor’s power.

• La Folia reported that the final qualified refugees had been relocated from Ilvas Demon Special Zone and explained how the Kingdom of Aldegia had benefited from accepting people and technical personnel.
• Saigō told La Folia he would have Natsuki declare String God Island independent so Island Nation would attack and provide sacrifices for the Feast of Blazing Light.
• Saigō said he would also target the North Sea Empire and predicted that String God Island’s conflict with the Sanctuary Treaty Nations would become the founding war of Witch’s Night.
• La Folia offered to have the kingdom secretly send supplies to String God Island through the Atlantic and Pacific shipping routes.
• Island Nation’s parliament erupted in anger after the String God Island Management Corporation declared independence and announced the Night Empire.
• The Prime Minister informed his cabinet that the witches had obtained the Fourth True Ancestor’s power, causing the cabinet members to reconsider the threat.

The Island Nation’s cabinet planned to seize String God Island, while the Lion King Organization’s Three Saints discussed how to confront the Fourth True Ancestor and the demon who held his power. Yuan Tangyuan warned that force would fail and ended by asking Xian Guyong about the organization’s history and fading Divine Vibration Wave inheritance.

• The cabinet members judged String God Island vulnerable and planned to rely on the Lion King Organization while pursuing its Holy Annihilation System.
• An Baina questioned Xian Guyong about the order to act against String God Island and the approaching Fourth True Ancestor.
• Xian Guyong proposed using the Divine Vibration Wave to kill the Fourth True Ancestor, but An Baina warned that the Saints’ power could not overcome a True Ancestor.
• Yuan Tangyuan said the demon already rivaled the Third True Ancestor and jokingly suggested that the Three Saints seduce him instead of fighting him.
• Yuan Tangyuan asked about the Lion King Organization’s history, and Xian Guyong explained its founding and the weakening inheritance of the Divine Vibration Wave.

As the Island Nation’s fleet besieged String God Island, Saigō and Nangong Nayue prepared to activate Holy Annihilation through Cain’s miko, Aoba Asagi, while the Feast of Blazing Light began in Ilvas. The chapter ended with the True Ancestors discussing how Saigō had taken control of the Night Lord of Blazing Light and derailed their plans.

• Yuan Tangyuan persuaded Xian Guyong to outwardly cooperate with the Island Nation while protecting the Lion King Organization’s independence.
• Saigō told Nangong Nayue that the Island Nation was maintaining a blockade and that activating Holy Annihilation would draw the Sanctuary Treaty Nations into the conflict.
• Nangong Nayue admitted that she missed Saigō, and they teased each other before she promised to step on him once the crisis was resolved.
• Nangong Nayue and Sendou Aya discussed the danger posed by the Island Nation’s Demon Slayers and decided to rely on Cain’s miko to activate Holy Annihilation.
• Saigō announced that the Feast of Blazing Light had begun, and Nangong Nayue and Sendou Aya sensed its power from String God Island.
• The Second True Ancestor told the other True Vampires that Saigō had taken the Night Lord of Blazing Light’s power, disrupting their plan to use Primogenitor’s soul to revive it.

Saigō absorbed the memories of tens of millions during the Feast of Blazing Light and gained the Fourth True Ancestor’s power through Aurora and the other Vessels. After destroying Ilvas Artificial Island with a single punch, he headed for the North Sea Empire to retaliate for its attack on his plane.

• The three True Ancestors discussed the Feast of Blazing Light and agreed that the Holy Annihilation System must never be activated again.
• The Feast of Blazing Light stole the memories of tens of millions across the Island Nation, the North Sea Empire, and the Nerepsi Autonomous Dominion, turning them into Blood Mist.
• Aurora and the other eleven Vessels absorbed the Blood Mist, became incarnations of the twelve Star Familiar Beasts, and joined Saigō as the skill Super-tier Magic—Twelvefold Forbidden Existence.
• Saigō used the stolen memories to deepen his understanding of humanity and power, then declared his intention to break his shackles and reach the Omnipotence Domain.
• Saigō shattered Ilvas Artificial Island with a punch and flew toward the North Sea Empire to punish it for firing a missile at his plane.

Nangong Nayue brought Aoba Asagi to the deepest level of the Foundation Gate and revealed that she needed Aoba to activate the Holy Annihilation System. She admitted she would use Aoba even if she refused, and Aoba learned that Nangong Nayue controlled String God Island.

• Nangong Nayue led Aoba Asagi through the Foundation Gate while String God Island remained under attack.
• Aoba Asagi discovered a submarine base, then followed Nangong Nayue to a stone door covered in complex spell circuits.
• Nangong Nayue revealed that the Holy Annihilation System lay beyond the door and explained that it was not a ruin left by Cain.
• Nangong Nayue told Aoba Asagi that she was Cain's miko and that the witches needed her to activate Holy Annihilation.
• Nangong Nayue admitted she would make Aoba activate the system even if she refused, and confirmed that she controlled String God Island.

Nangong Nayue and Aoba Asagi prepared to use the Holy Annihilation System as the Sanctuary Treaty Nations voted to invade String God Island. As the invasion began, the Witches struggled to defend the island while Nangong Nayue fought the attacking forces.

• Aoba Asagi trusted Nangong Nayue and entered the Holy Annihilation System, and Nangong Nayue followed her through the Foundation Gate.
• The Sanctuary Treaty Nations voted to intervene against String God Island; the Forgotten War King and the Eye of Annihilation supported the motion, while the Chaos Princess abstained.
• The Twelve-Nation Alliance surrounded String God Island with warships and aircraft, and Nangong Nayue discussed the crisis and Saigō with Sendou Aya.
• The Sanctuary Treaty Nations attacked the island, while Sendou Aya used the Dark Oath to make magic power vanish and protect it temporarily.
• Nangong Nayue fought across the ocean with the Wheel King, binding enemy units and using black flames to age her opponents toward death.