Chapter Summaries

Leo explained Vali’s extraordinary strength to Sirzechs and warned him that the Old Satan Faction and Hero Faction could sabotage the coming Three Factions meeting. After Sirzechs announced the meeting to the assembled peerages, Leo revealed that Issei’s Sacred Gear had once prompted the factions to cooperate.

• Leo described how Vali’s vast demonic power let him sustain Balance Breaker and Juggernaut Drive, making him a threat even to Maou-Class devils.
• Sirzechs worried that Azazel might have ulterior motives regarding Vali, but Leo urged him to pursue peace talks and watch out for the Old Satan Faction and Hero Faction instead.
• Leo and Sirzechs teleported to the Occult Research Club, where devils were repairing damage and concealing the night’s events across Kuoh Town.
• Sirzechs told members of the Eligos, Gremory, and Sitri Peerages that the Three Factions would hold a meeting and might require them to give reports.
• Leo told the gathered group that the Three Factions had cooperated once before, then pointed out that Issei’s Sacred Gear had been the reason.

Leo recounted how the Heavenly Dragons had once forced the Three Factions to unite, then introduced himself and his Peerage to Issei Hyoudou. The meeting left Issei envious of Leo’s harem and rumored engagement to Sona, while Sona introduced her new Pawn, Shirogane Shirou.

• Leo explained that the Heavenly Dragons had once overwhelmed the Three Factions, whose alliance ultimately punished them.
• Rias introduced Leo Eligos to Issei as a High-Class Devil and active King, and Leo called the girls in his Peerage members of his harem.
• Rias, Sona, Akeno Himejima, Tsubaki Shinra, and the others scolded Issei for his disrespect toward Leo.
• Sona introduced Shirogane Shirou as a new Pawn in her Peerage, and Leo welcomed him warmly.
• Yuuto Kiba told Issei that Leo and Sona were close friends and that their families intended them to become engaged, making Issei even more envious.

Sirzechs warned Leo, Rias, Sona, and the others that the coming Three Factions meeting could attract dangerous enemies, then arranged support and a secure training space for them. He also gave Rias permission to begin mastering her sealed Bishop ability, with Leo present in case it went out of control.

• Sirzechs told the group they would attend the Three Factions meeting and urged them to stay cautious while its details were arranged.
• Sirzechs warned that the Old Satan Faction and Hero Faction belonged to a larger underground organization, and that other Mythological Systems might also interfere.
• Sirzechs said he, Serafall, and Ajuka would send peerages to support the group and create a private Different Dimension for refuge, travel, communication, and training.
• Rias and Sona agreed that they needed to train together so they could better protect themselves from future attacks.
• Sirzechs gave Rias permission to try controlling her sealed Bishop ability, believing Leo could handle it if it became dangerous.

After returning from Underworld training, Leo and the four girls resumed school while hiding the truth about their month away. Leo explained that he would only recruit servants with exceptional potential or existing strength, then encouraged the girls to pursue becoming High-Class Devils and independent Kings as the coming conflicts offered chances to earn achievements.

• Leo and the four girls returned to Sobu High and deflected classmates’ questions about their month-long absence by claiming it involved club activities.
• Utaha told Eriri the truth about their Underworld training, and Eriri fantasized about the group’s mixed hot-spring baths.
• Leo explained that future servants would need substantial strength or exceptional potential, and said Sirzechs and Ravel were helping him find candidates.
• Leo suggested that Utaha could become a High-Class Devil and take Eriri as her own servant; Utaha and Yukino considered becoming Kings.
• Leo reminded the girls that they had been Devils for less than six months and said future battles would give them chances to earn achievements and reach High-Class rank.

Leo and the peerages traveled to a vast Different Dimension prepared by Sirzechs, where they met the Gremory and Sitri Peerages and learned that Xenovia had reincarnated as a devil. With the gathered peerages ready to train, Leo proposed friendly sparring matches.

• Ravel explained that the registered members could use the basement magic circle to travel to Sirzechs's vast Different Dimension, and Leo led the group there.
• Rias and Sona Shitori arrived with their peerages, and the group discovered that Xenovia had reincarnated as Rias's Knight and now wielded devil wings alongside Durandal.
• Asuna considered Yuuto Kiba's newly achieved Balance Breaker a serious challenge and resolved to push herself toward reaching Balance Breaker as well.
• Leo asked about Rias's unsealed Bishop, and Rias explained that the introverted boy was not ready to leave his room or meet everyone.
• Leo proposed sparring between the gathered peerages, and Rias and Sona agreed to a friendly exchange.

The Peerages began a series of friendly sparring matches, and Rias challenged Leo alone to test how long she could withstand him. Their first attacks collided in midair, leaving the match underway.

• Asuna and Xenovia agreed to cross swords, while Yukino challenged Kiba and Koneko, Utaha, and Tsubasa arranged a three-way Rook match.
• Reya and Momo teamed up against Mahiru, Ravel paired with Tsubaki, and Rem, Tomoe, and Ruruko took turns fighting; Akeno challenged Ram.
• Issei and Shirogane began brawling after being left without partners, while Rias and Sona asked Leo for separate matches.
• Rias insisted on facing Leo alone, and Sona moved aside to watch and study their fight.
• Rias opened the match with a blast of Demonic Power, and Leo answered with his own sphere; the two attacks collided above the wilderness.

Rias unleashed her Power of Destruction against Leo, but he overwhelmed her with superior strength and technique. After ending the fight, Leo revealed Hope of Nature, a Zenith Tempest ability that let him merge with the wind and reappear behind her.

• Rias bombarded Leo with Magic Bullets and a torrent of destructive Demonic Power, but he blocked and scattered her attacks.
• Leo counterattacked with a torrent of Demonic Power that broke through Rias's defenses and injured her.
• Rias tried another attack, but Leo detected and crushed her hidden Magic Bullet before appearing behind her through the air.
• Leo stopped the fight, and Rias admitted she could not beat him at her current level.
• Leo explained that he had developed Hope of Nature by using Zenith Tempest to merge with natural forces such as wind.
• Leo pointed out that Rias should change her badly damaged clothes.

Leo helped Rias, Sona, and the others train in the Different Dimension as they prepared for the upcoming summit, while King Cerberus became their powerful sparring partner. Sona told Leo that the summit was set for Kuoh Academy and that Serafall had accepted Kokabiel’s challenge, leaving Leo worried he would have to see her.

• Rias and Sona fought Leo, but he defeated them both and then easily overcame them when they teamed up.
• The three peerages trained regularly in the Different Dimension, where Leo used King Cerberus as a sparring partner and helped Rem control her Oni Transformation.
• Sona told Leo that the Devils, Angels, and Fallen Angels would meet at Kuoh Academy in a week, with Sirzechs, Serafall, Michael, and Azazel representing their factions.
• Sona explained that Kokabiel remained imprisoned while the Devils debated his fate, and that Serafall accepted his challenge after the other Maous refused.
• Sona revealed that Serafall froze Kokabiel into an ice sculpture ten times in ten seconds, prompting Leo to say he did not want to see her at the summit.

Serafall Leviathan arrived in the Different Dimension to visit her younger sister, Sona Shitori, and greeted her with an exuberant embrace. She then teased Leo for being close to Sona, while the others reacted to her unexpected arrival and antics.

• Serafall rushed to Sona Shitori and clung to her, leaving Sona stunned and embarrassed.
• The group recognized Serafall as the Underworld’s female Satan, and Ravel explained her Magical Girl hobby.
• Serafall said she had come to see Sona after her recent brushes with danger and scolded her for not keeping in touch.
• Issei Hyoudou and Shirogane Shirou stared at the sisters, so Koneko Toujou and Tsubaki Shinra knocked them into the dirt.
• Serafall confronted Leo, accusing him of trying to steal Sona away and insisting she would follow Sona wherever she went.

Sona Shitori explained that she had accepted her family’s plan to engage her to Leo because she liked and trusted him. Serafall reluctantly agreed not to interfere, though she still tried to impose restrictions on their relationship, and Sona ended by looking toward Leo with exasperated thoughts.

• Serafall confronted Leo because she believed he was going to take Sona Shitori away from her.
• Sona Shitori admitted she knew her family intended to match her with Leo and had chosen to accept because she liked him.
• Sona Shitori reminded Serafall that the Sitri Clan needed her to marry and continue the family line, leaving Serafall unable to argue.
• Serafall reluctantly promised not to oppose Sona Shitori and Leo, then pleaded with Sona not to rush into marriage or having children.
• Serafall demanded that Sona Shitori not even hold hands with Leo, but backed down when Sona threatened to contact their father.
• Sona Shitori considered giving herself to Leo to quiet Serafall, while Leo sneezed and wondered who was thinking about him.

Serafall left after warning Leo not to touch Sona before marriage, and Sona reassured him that her sister would eventually stop targeting him. With the Summit Meeting two days away, Leo and Asuna discussed the likelihood of attacks by the Old Satan Faction and Hero Faction; Asuna affirmed that she did not regret becoming a Devil or taking up her sword.

• Serafall warned Leo that she would freeze his lower half if he laid a hand on Sona before they married, then stomped on his foot and left.
• Sona told Leo that Serafall would eventually stop targeting him, and Leo reflected that his growing strength made him less afraid of her.
• At the estate, Asuna asked Leo whether the underground organization Sirzechs had mentioned might interfere with the Summit Meeting, and Leo said the Old Satan Faction and Hero Faction could act.
• Leo explained that Cao Cao's information about him was outdated and said he was prepared to face the Hero Faction leader if necessary.
• Leo asked whether Asuna regretted becoming a Devil and picking up her sword, and she said she was grateful for both and believed her companions felt the same way.

Yukino discovered that Absolute Demise had stalled between ordinary enhancement and Balance Breaker, and she struggled to find the emotional upheaval needed to reach the latter. When she returned to Leo's manor hoping to speak with him, she found that he was bathing with Asuna and felt bitter about being the one who came first.

• Yukino tested Ice Princess's Freezing Breath in the Different Dimension and realized Absolute Demise's power had become sluggish and unstable.
• Yukino concluded that Absolute Demise stood at a crossroads between a normal enhancement and Balance Breaker, and that she had to push it toward one path.
• Yukino considered provoking Haruno to trigger the intense emotions needed for Balance Breaker, but reflected on how her life as a Devil had separated her from her sister.
• Yukino returned to Leo's manor and went to his room, where she heard Leo and Asuna in the bath.
• Yukino realized Leo had been intimate with Asuna and felt bitter because she had been the one who came first.

Yukino reflected on how she had accepted Leo and his genuine care, though she resented that Asuna had been first to sleep with him. After Leo emerged from the bathroom, he caught Yukino waiting outside and tried to keep his embarrassing performance private, then carried her off after reminding her that she was his first peerage member.

• Yukino accepted that Leo's care for her and the others was genuine, but felt that she should have been the first to become intimate with him.
• Leo came out of the bathroom after an hour and found Yukino waiting outside; she revealed she had arrived early and heard him surrender during his first attempt with Asuna.
• Yukino asked where Asuna was, and Leo said she was inside cleaning up.
• Leo hugged Yukino and asked her to keep his quick surrender a secret; Yukino refused to discuss his antics and demanded that he let go.
• Leo told Yukino that she could know because she was his first peerage member, then lifted her into his arms.

Leo woke beside Asuna and Yukino after spending the night with them, and Yukino confirmed that her Sacred Gear, Absolute Demise, had completed its transformation. Leo revealed that Utaha had touched the domain of Balance Breaker a week earlier and was still trying to trigger the emotional shock needed to complete it.

• Leo woke with Asuna and Yukino beside him, and Yukino reproached him for taking her virginity and then teasing her about it.
• Yukino summoned the Ice Princess and confirmed that her Sacred Gear transformation had ended.
• Yukino explained that Absolute Demise had shut down after reaching a crossroads between greater power and Balance Breaker.
• Leo told Yukino that Utaha had reached the Balance Breaker domain a week earlier, surprising Yukino that Utaha had advanced faster than her.
• Leo explained that Utaha was seeking an intense emotional upheaval to complete her Balance Breaker, and that criticism of her novel had nearly pushed her over the threshold.

Yukino told Leo that she had completed her Sacred Gear’s Balance Breaker after the emotional upheaval of the previous night. Leo warned her that her three-hour limit was too short and advised her to improve her stamina and Demonic Power; the chapter ended with Yukino leaving to test her new strength and Leo turning his attention to the waking Asuna Yuuki.

• Leo reassured Yukino that her Demonic Power was her greatest strength, and she revealed that she had completed Balance Breaker.
• Yukino explained that her emotional upheaval the previous night had triggered the final step of her transformation, and Leo teased her about it.
• Yukino learned from Ice Princess that she could currently maintain Balance Breaker for about three hours, while Leo said she needed to build up her endurance.
• Leo compared Yukino’s limit with the White Dragon Emperor’s month-long Balance Breaker and his own three-month estimate, then advised her to train her stamina and Demonic Power.
• Yukino decided to test her new power and left, while Leo turned toward the sleeping Asuna Yuuki, who woke with a start.

Leo trained Rem to control her Oni Transformation before Ram summoned them to the Three Factions’ summit meeting at Kuoh Academy. The heavily guarded conference began with Leo’s arrival, where he recognized Archangel Michael among the leaders.

• Leo coached Rem in controlling her horn and the power it absorbed, then stopped her transformation when she neared losing control.
• Rem learned she could fight effectively for up to thirty minutes and was relieved she could stand beside Ram in battle.
• Ram told Leo that the summit meeting was starting, and they headed to Kuoh Academy with his Peerage.
• The Three Factions’ guards sealed Kuoh Academy behind a powerful barrier and escorted their representatives into the New School Building.
• Leo entered the conference room, where he saw Sirzechs, Serafall, Azazel, Vali, and Archangel Michael.

The representatives of Heaven, the Devils, and the Fallen Angels gathered for a summit about Kokabiel’s attack, with Leo and the others reporting how they had stopped him. Azazel was pressed to explain Kokabiel’s actions, but he claimed there was nothing to explain.

• Michael, Azazel, Sirzechs, and Serafall met with the peerages, where Azazel and Michael took interest in the many Longinus and rare Sacred Gear holders present.
• Leo, Rias, and Sona joined the meeting, and the three-faction summit began after Grayfia served tea.
• Sirzechs asked Leo, Rias, and Sona to report on Kokabiel’s incident; Sona gave an overview, Rias described the battle, and Leo explained how he had confronted and defeated Kokabiel.
• Azazel and Michael praised Leo for defeating and sealing Kokabiel without using his Balance Breaker, while Vali’s desire to fight Leo grew stronger.
• Sirzechs demanded that Azazel explain Kokabiel’s actions, but Azazel replied that there was nothing to explain.

Azazel argued that the Fallen Angels had no desire to restart the war, and the leaders of the Devils and Angels agreed that the Three Factions needed peace to survive. The chapter ended with Azazel declaring that they would sign a peace agreement.

• Azazel explained that Kokabiel had acted alone and that the Fallen Angels had left him in the Devils’ hands to prevent the conflict from escalating.
• Azazel, Sirzechs, and Michael agreed that another war would destroy all three factions.
• Serafall proposed that the Three Factions sign a peace agreement, and Sirzechs supported cooperation and reform.
• Azazel and Michael raised the problem of generations of hatred, while Sirzechs and Serafall insisted that the factions had to move forward.
• Michael said the Angels had long dreamed of peace and supported forging a shared future.
• Azazel declared that the Devils, Angels, and Fallen Angels would make peace and sign an agreement.

Dimension Lost transported Leo, Ravel, and Rem to a different dimension during the Three Factions’ Summit, where Annihilation Maker’s monsters attacked them. After the trio defeated the creatures, Leo set out to find the others and regroup.

• Dimension Lost’s fog swallowed Kuoh Academy and transported Leo, Ravel, and Rem away from the Summit, separating them from everyone else.
• Ravel identified their surroundings as a different dimension, and Leo concluded that the Hero Faction had become involved.
• Annihilation Maker’s black monsters attacked the trio with Light Power, but Ravel burned them, Rem smashed them, and Leo destroyed them with magic.
• After the battle, Leo worried about the others’ safety and decided to search for them with Ravel and Rem.

Leo and the Eligos Peerage fought through a ruined, monster-filled copy of Kuoh Town and regrouped after being separated by a forced transfer. Leo concluded that the dimension was made for their Peerage and led everyone to find its mastermind.

• Leo unleashed Zenith Tempest, flooding the dimension with lightning that destroyed the black monsters and devastated Kuoh Town.
• Yukino Yukinoshita and Ram joined Leo, Ravel, and Rem after fighting monsters with ice and wind, and the group realized the others had been scattered.
• Leo reasoned that Utaha Kasumigaoka, Asuna Yuuki, and Mahiru Shiina could protect themselves from the monsters’ Light Power.
• The group found Mahiru Shiina and Asuna Yuuki fighting off monsters, while Utaha Kasumigaoka later flew to them behind her barrier.
• After confirming the Eligos Peerage had regrouped but had seen none of the other factions, Leo concluded the dimension was likely made for them and set out to meet the mastermind.