Chapter Summaries

Sirzechs defeated Grayfia, leaving her gravely wounded, and Saigō took her away to treat her. Saigō also planned to divide the Destruction Spirit between Sirzechs and a future sibling, while Ajuka congratulated Sirzechs after the battle.

• Sirzechs overwhelmed Grayfia with Destruction Magic and punched through her abdomen, causing her to collapse unconscious.
• Saigō told Gremory that Sirzechs’s bloodline was insufficient to inherit the Destruction Spirit alone, so he planned to share it between Sirzechs and another child.
• Euclid and Seraphlu rushed to Grayfia, but they could not treat the damage caused by House of Gremory’s Destruction Magic.
• Saigō promised to treat Grayfia, persuaded Euclid to step aside, and carried her away as her bleeding stopped.
• Ajuka congratulated Sirzechs on defeating Grayfia and remarked that he was close to becoming a High-Class Demon.

Saigō welcomed Ajuka and Seraphlu as guests, then spoke with Ophis about her struggle against Great Red over the Dimensional Rift. Meanwhile, Mr. and Mrs. Lucifugus confronted House of Gremory over Grayfia’s wager, only to learn that the witnessed agreement could not be undone.

• Saigō invited Ajuka and Seraphlu to stay at House of Gremory’s villa, then carried the injured Grayfia inside.
• Ophis asked Saigō to help her reclaim the Dimensional Rift, and he offered her a choice between his continued support or driving Great Red away once and refusing to intervene afterward.
• Ophis chose Saigō’s continued support so she could gradually grow strong enough to defeat Great Red herself.
• Mr. and Mrs. Lucifugus arrived unannounced and challenged Gremory over Grayfia’s wager with Sirzechs.
• Gremory recounted the battle and explained that the agreement had been witnessed by many demons, leaving the Lucifugus couple unable to reverse it.

The Lucifugus couple visited House of Gremory to challenge Grayfia’s new service, but Saigō revealed himself as the surviving Lord of Demons and warned them to leave the younger generation’s affairs alone. The couple retreated without seeing Grayfia and apologized to Gremory, while Euclid was blamed for bringing them there unprepared.

• Gremory refused the Lucifugus couple’s request to see Grayfia, but Saigō invited them upstairs to his study.
• The Lucifugus couple entered the study, were forced to their knees by Saigō’s presence, and recognized him and Ophis.
• Saigō told the couple that the God of the Bible had truly fallen and cautioned them not to interfere in the younger generation’s affairs.
• The Lucifugus couple declined to visit the unconscious Grayfia and left the study after Saigō promised she could visit them once she awoke.
• Euclid asked his parents about Grayfia, and the head of House of Lucifugus slapped him before apologizing to Gremory for their mistaken confrontation.

After the Lucifugus couple abandoned Grayfia to House of Gremory, they decided to distance themselves from the Demon King Faction and draw closer to Gremory. Ophis negotiated for Gremory to care for her while she stayed in the Netherworld, and Grayfia awoke in Saigō’s care, still unsure how she had survived.

• The head of House of Lucifugus blamed Grayfia, declared she would become a maid of House of Gremory, and hurried away with his family.
• The Lucifugus couple agreed to cut ties with the Demon King Faction and keep Saigō’s identity secret, while Euclid followed them in anger.
• Ophis asked Saigō for cake, then let Gremory feed it to her while the two treated each other like mother and daughter.
• Ophis agreed to remain in the Netherworld if Gremory supplied her favorite treats and personally served her food and drinks.
• Grayfia regained consciousness in an unfamiliar room, wondered how she had survived her injuries, and recognized Saigō beside her bed.

Grayfia returned to House of Lucifugus and found her parents unexpectedly supporting her service to House of Gremory, while Saigō’s kindness eased the strain between them. At a family meal, Ajuka revealed that he had found a mysterious Stone Tablet in the Netherworld that might be the Lord of Demons’ legacy and could help him strengthen the demon race.

• Saigō ordered the recovering Grayfia to visit her parents, and she reluctantly agreed to obey her master.
• Grayfia’s parents urged her to return to House of Gremory, fulfill her wager, and leave the family’s political troubles to them.
• Grayfia thanked her parents and realized that Saigō may have anticipated how her visit would change their relationship.
• Grayfia served Saigō and the Gremory family at lunch, with Ajuka attending as a frequent guest.
• Ajuka explained that he wanted to increase the demons’ strength and numbers by transforming other races into demons.
• Ajuka told Saigō that he had discovered a mysterious Stone Tablet he believed might be the Lord of Demons’ legacy.

Ajuka explained his plan to win a vacant Demon King title and use its political legitimacy to research the Lord of Demons’ legacy, while Saigō and Gremory supported him. Gremory planned to name their next daughter Rias, and the chapter ended with Azazel facing the Fallen Angels’ declining fortunes and being asked about his Sacred Gear research.

• Ajuka told Saigō that the Reformist Faction planned a competition for the four vacant Demon King titles, which he and Sirzechs hoped to win so they could restore political authority and research the Lord of Demons’ legacy.
• Saigō warned Ajuka that titles alone would not grant power, then asked Ruinyas to propose a tournament to the council; Ajuka and Sirzechs thanked them for their support.
• Gremory told Saigō she wanted another daughter and chose the name Rias Gremory, while Ophis watched them from a chair.
• Azazel reflected on the Fallen Angels’ shrinking population and weakened position as he met with the Divine Child Watcher in the Netherworld.
• Ariel asked Azazel how his research into Sacred Gears was progressing.

Azazel proposed using Divine Vessel holders to strengthen the Fallen Angels, while the demon race held a tournament to fill its vacant Demon King positions. Sirzechs, Ajuka, Seraphlu, and Falbium won, and Saigō expected Sirzechs to lead the next era as Gremory carried their daughter.

• Azazel urged the Fallen Angels to track and recruit Divine Vessel holders as a way to bolster their forces.
• At the Demon King Tournament, Gremory, Saigō, and Ophis cheered for Sirzechs while caring for Gremory, who was pregnant with a daughter.
• Sirzechs, Ajuka, Seraphlu, and Falbium defeated their rivals and claimed the four vacant Demon King titles.
• The Reformist Faction celebrated its victories, while the Old Demon King Faction accepted the fair results despite its anger.
• Saigō told Gremory that Sirzechs's title would eventually become worthy of its name and predicted House of Gremory's era.

After Sirzechs and the others became the Four Great Satans, House Gremory celebrated their victory and discussed the political challenges ahead. Later, Ajuka hid his Demon Chess Piece research from Sirzechs, and the two reflected on the first-generation demons’ devotion to Zarathustra.

• Gremory arranged a banquet after Sirzechs and the others were formally named the Four Great Satans.
• At the Gremory estate, Sirzechs reassured Gremory that he still considered Gremory part of his true name, and Saigō encouraged him to use his new standing to unite demonkind.
• Saigō told Sirzechs and Gremory that their unborn daughter was healthy, and Sirzechs promised to help create a better future for her.
• At his Agreas research institute, Ajuka hid the Demon Chess Piece when Sirzechs entered and explained that he feared the first-generation demons might obstruct his research into Zarathustra’s Stone Tablet.
• Sirzechs reminded Ajuka that the first-generation demons revered Zarathustra as their father, and Ajuka acknowledged their enduring feelings.

Sirzechs and Ajuka celebrated the creation of the Demon Chess Pieces, while Rias was born into the House of Gremory and grew into a determined young girl who trained hard under Grayfia’s care. On her birthday, Grayfia told Rias to prepare for the banquet attended by her family and friends.

• Ajuka showed Sirzechs the Demon Chess Piece and explained how it could turn members of other races into demons, while the Stone Tablet could increase a person's power at a cost.
• Sirzechs praised Ajuka's achievement, and they discussed how to help demons accept the new pieces before Sirzechs said his younger sister would be born within twenty years.
• Rias was born at the House of Gremory and later trained with her destructive demonic power, but she was dissatisfied when the training ground's barrier overcame it.
• Grayfia comforted Rias and reflected on the expectations surrounding her, recognizing that Rias embraced the pressure as motivation rather than resenting it.
• Grayfia reminded Rias that it was her birthday and told her to wash and dress for the banquet, where Saigō, Gremory, Sirzechs, Ajuka, Seraphlu, and Sona Sidi would attend.

At her birthday banquet, Rias received Saigō’s promise to stay with her and his warning that she had at most ten years to grow stronger. Saigō rejected House of Phoenix’s proposed marriage alliance, and Rias’s birthday celebrations continued among the Netherworld’s nobles.

• Rias visited Saigō in his study, where he praised her beauty and gave her a birthday kiss.
• Rias wished for Saigō to stay with her forever, and he granted her wish while urging her to become stronger within ten years.
• Saigō warned Rias that she would face powerful enemies but would have friends to help her through her trial.
• Saigō escorted Rias to her birthday banquet, where nobles gathered and Grayfia attended them.
• Saigō introduced Rias to Levall Phoenix and his siblings, then bluntly rejected House of Phoenix’s marriage proposal for Rias.

At Rias’s birthday banquet, Saigō rejected House Phoenix’s marriage proposal and arranged for Reibel to join Rias’s future peerage. Rias publicly refused marriage arrangements, received a Demon Chess Piece from Ajuka, and agreed to travel with Saigō to seek future peerage members.

• Levall accepted Saigō’s rejection of the marriage proposal, and Saigō suggested that Reibel could join Rias’s peerage when she was older.
• Rias worried that her parents might arrange a fiancé for her, but Saigō reassured her that he would not force her into marriage.
• At her birthday banquet, Rias declared that she had no interest in marriage and wished to remain by Saigō’s side.
• Ajuka gave Rias a king chess piece, and Rias admitted that Sona was the only person she currently considered important enough to join her peerage.
• Saigō proposed traveling with Rias to find people suited to her peerage, and Rias eagerly agreed.

Azazel and Vali discussed the new Red Dragon Emperor and Vali decided to turn him into a Demon so he could become a worthy rival. Azazel revealed that the Fallen Angels were divided over whether to start another war and hinted that Baej’s recent actions had forced him to act.

• Azazel told Vali that he believed the ordinary boy was this generation’s Red Dragon Emperor and might become the strongest in history.
• Vali acknowledged Azazel as his father and explained that Saigō had given him a Demon Chess Piece when Vali visited House of Gremory.
• Vali decided to use a Demon Chess Piece on the Red Dragon Emperor, both to strengthen his body and to create a rival worthy of fighting.
• Azazel said he alone among the Fallen Angels knew the host’s identity and offered Vali assistance while explaining that factions within the Fallen Angels wanted war.
• Azazel said he would no longer tolerate the warmongering faction after its members committed an unforgivable crime, and Vali connected this to Baej’s matter.

Himejima Akeno, hunted by the Fallen Angels and House of Himejima after her mother’s death, collapsed in the snow while fleeing north. Azazel and Baej watched over her from above, and Azazel revealed his plan to use the War Faction’s schemes against the Red Dragon Emperor as he helped Vali and Baej seek justice.

• Himejima Akeno’s mother died protecting her from the Fallen Angels and House of Himejima, forcing Akeno to survive alone while both groups pursued her.
• Himejima Akeno fled into the northern snow after being discovered again, and she collapsed while vowing to live, avenge her mother, and confront her father.
• Baej watched Akeno from above with Azazel and refused to approach because he feared she would hate him more.
• Azazel admitted he felt responsible for Baej’s loss and said he had left Vali to observe the Red Dragon Emperor.
• Azazel planned to use the War Faction to draw the Red Dragon Emperor into the supernatural world, where Vali could reincarnate him and help expose the War Faction.

Saigō and Rias rescued the unconscious Himejima Akeno from the snow and brought her to the Gremory estate, while Azazel persuaded Baej not to intervene. After waking, Akeno cautiously learned that Rias was a demon who had saved her, but her years of hardship kept her from trusting anyone easily.

• Azazel stopped Baej from approaching Akeno and argued that she would be safer with House of Gremory than with House of Himejima.
• Saigō recognized Akeno's potential, carried her to safety, and warmed her with demonic power as Rias accompanied him.
• Akeno woke in a luxurious bedroom and found Rias watching over her.
• Rias introduced herself and revealed her demon wings, prompting Akeno to fear that she might be exploited to threaten Baej.
• Rias reassured Akeno that she and Saigō had rescued her, but Akeno remained guarded and silent.

Saigō and Rias welcomed the hunted Himejima Akeno into their family, and Rias later celebrated Akeno’s birthday with a trip to an amusement park. There, Ophis appeared beside Saigō and said she had outsmarted a human who tried to recruit her against Great Red.

• Saigō reassured Akeno that she was safe, invited her to become Rias’s servant, and offered her power if she chose to seek revenge on House of Himejima.
• Rias and Akeno grew close over the following weeks, and Saigō took them to Rusutsu Amusement Park to give Akeno a happy childhood outing.
• Rias surprised Akeno with a birthday gift, a hair ornament, and Akeno gratefully accepted it.
• Saigō bought strawberry cotton candy and gave it to Ophis, who said she had tricked a human who offered to help her return to the Dimensional Rift and deal with Great Red.

Saigō learned from Ophis that Shiva’s influence was reaching beyond his seal and considered how their struggle over the world’s history could shape a Historical Transition Period. Meanwhile, Yasaka fled a Shinto pursuit and became trapped in an amusement park, where Rias and Himejima Akeno witnessed her arrival.

• Ophis told Saigō that a human who tried to deceive her carried the same destructive presence she had sensed during the attack on Saigō and God of the Bible.
• Saigō recognized the presence as Shiva’s and reasoned that their battle depended on influencing history and the coming Historical Transition Period.
• Himejima Akio led Onmyoji and Shinto priests in pursuit of the pregnant Yasaka, hoping to kill her and strengthen his standing.
• Yasaka recalled how the Shintoists had attacked after she spent much of her power conceiving a child, forcing her to flee Kyoto and the yokai under her protection.
• Yasaka was cornered by barriers at an amusement park, and Rias and Himejima Akeno watched as she burst inside.

Himejima Akio and more than a hundred Onmyoji and Shinto priests surrounded Rias, Himejima Akeno, Saigō, and the pregnant Nine-tailed Fox, Yasaka. Saigō urged Akeno to consider avenging her mother, and she relived the memories of her mother’s death.

• Himejima Akio recognized Himejima Akeno and announced that House of Himejima would capture her while hunting the Nine-tailed Fox.
• Yasaka transformed into a pregnant woman and proposed that she, Rias, and Akeno join forces to escape.
• Rias revealed her demonic power and refused Himejima Akio’s offer to leave if she handed over Akeno.
• Saigō rose from the bench and mocked Himejima Akio for targeting a pregnant woman, then asked Akeno whether she wanted revenge for her mother.
• Himejima Akeno remembered her mother’s care, her escape from the shrine, and finding her mother dead.

Saigō gave Himejima Akeno a portion of the Takamamagahara Pantheon Worldview, letting her wield Shintoism’s power against Himejima Akio and his forces. As Akeno and Rias began overwhelming the defenders, the battle at the amusement park continued.

• Saigō guided Himejima Akeno to confront her hatred for Himejima Akio and avenge her mother.
• Akeno resolved to kill Himejima Akio, and Saigō bestowed upon her power from the Takamamagahara Pantheon Worldview.
• Himejima Akio sensed danger and ordered the Onmyoji and Shinto priests to attack Saigō, Yasaka, Rias, and Akeno.
• Akeno discovered that Shintoism’s spells could not harm her, then summoned lightning that destroyed the shikigami and struck the attackers.
• Rias unleashed a destructive beam that pierced the defenders’ spells and the barrier built to capture Yasaka.

Rias and Himejima Akeno slaughtered the forces trapped by the barrier, while Himejima Akio sacrificed his own people to summon Shinto power against Akeno. Saigō used Little Garden’s power to erase Takamagahara and the Eight Million Gods, leaving the world’s factions terrified and Himejima Akio without divine aid.

• Rias unleashed Demon King-level Power of Destruction as Himejima Akeno’s lightning devastated the trapped Onmyoji and Shinto priests.
• Himejima Akio refused to order a retreat, killed an Onmyoji who urged him to escape, and sacrificed the remaining fighters to complete a god-summoning ritual.
• Himejima Akeno mocked Himejima Akio for betraying the legacy her mother had believed he upheld, while he vowed to drag her down to Yomi.
• When Shinto power began descending through Himejima Akio, Rias suggested retreating, but Saigō opened a passage to Little Garden and directed its observational power at the Eight Million Gods.
• Little Garden’s power erased Takamagahara and the Eight Million Gods, terrifying the world’s factions and cutting off the power Himejima Akio had summoned.

Himejima Akeno avenged her mother and was welcomed into Rias’s family, while Saigō reassured the pregnant Yasaka and accepted her offer to repay him. Rias then told Saigō that a Rogue Demon had fled to the Human World, and asked whether they should capture her.

• Himejima Akeno empowered the vengeful souls, which killed Himejima Akio and tore apart his soul.
• Rias comforted Himejima Akeno, welcomed her into House of Gremory, and promised to treat her as a younger sister.
• Yasaka thanked Saigō for saving her and explained that a traitor and Onmyoji had driven her from Kyoto while she was pregnant.
• Yasaka offered to repay Saigō after giving birth, but Saigō said he found her pregnancy beautiful.
• Rias reported that a Rogue Demon had fled the Netherworld after killing a member of a branch family of House of Naberious, and asked Saigō whether they should capture her.