Chapter Summaries

Su Yang arrived at school after spending the weekend studying, where Akeno Himejima suddenly embraced him and provoked Rias. As the two began fighting, Rias asked Su Yang to train Gasper, leaving the confrontation between her and Akeno unresolved.

• Su Yang corrected Artoria for assuming he had spent the weekend being intimate with angels and Fallen Angels, explaining that he had studied the Compendium of Sorcery Integration.
• Akeno Himejima rushed up to Su Yang at the school gates and hugged him, acting unusually shy.
• Rias confronted Akeno and demanded that she let Su Yang go, while Artoria teased her master and received a chop to the head.
• Rias and Akeno unleashed their demonic power, and Akeno revealed that she had begun cultivating lightning glow.
• Rias asked Su Yang to go train Gasper while she dealt with Akeno, and Su Yang chose not to interfere.

Su Yang agreed to help Rias train Gasper and brought Artoria to Kuoh Academy, where he also received a bizarre sign-in reward. The chapter ended with Artoria chasing Gasper through the gymnasium as Issei cheered him on.

• Su Yang asked Artoria whether she wanted to attend school and planned to put her in the same class as himself and Aisha.
• Su Yang signed in at Kuoh Academy's old school building and received Tatsumaki's Pantsu.
• Su Yang and Artoria entered the room where Gasper was sealed, and Gasper's Magic Eyes of the World Annulment failed to stop them.
• Su Yang told Gasper he had accepted Rias's request to train him, then began training him in the gymnasium with Artoria chasing him with the Holy Spear while Issei cheered.

Xenovia took Su Yang to the sports storage room and asked him to father a child with her, believing their offspring would be exceptionally strong. Su Yang accepted her direct proposal, and Xenovia moved to act before a meeting that evening.

• Issei encouraged Gasper to stop Artoria's warhorse while Su Yang watched their training.
• Xenovia arrived at the gymnasium and asked Su Yang to speak with her privately.
• Xenovia led Su Yang to the sports storage room and pushed him onto a stack of mats.
• Xenovia told Su Yang she wanted children and chose him as a suitable father because he was powerful and she liked him.
• Su Yang accepted Xenovia's proposal, and she urged them to make it quick before the evening meeting.

Su Yang left Xenovia and joined the leaders of the Three Great Factions for a meeting called by Sirzechs. He arrived as the factions gathered their most powerful representatives and guards, shortly before the meeting began.

• After spending several hours with Xenovia, Su Yang collected his Golden Blood and prepared to leave before Rias worried about him.
• Grayfia found Su Yang outside the sports equipment storage room and told him that Sirzechs wanted to speak with him.
• Su Yang agreed to follow Grayfia to the meeting place of the Three Great Factions.
• Su Yang entered the conference room and saw Sirzechs, Serafall, Bael, Asachel, Michael, and Gabriel gathered with powerful guards.
• Sirzechs welcomed Su Yang, who arrived only minutes before the meeting was due to begin.

Su Yang received three sign-in tasks while the leaders of the three factions gathered to discuss Kokabiel’s attack and the stolen Holy Swords. After Rias and Sona reported the incident, Asachel admitted that the Fallen Angels had been at fault.

• Su Yang received sign-in tasks involving Gabriel’s faith, defeating Diorio in a Thunder Path competition, and Irina Shidou’s wings, and resolved to win Irina over.
• Asachel proposed starting the meeting early, and Sirzechs and Michael agreed.
• Asachel asked Rias and Sona to summarize Kokabiel’s theft of the Holy Swords and the ensuing battle on demon territory.
• Rias and Sona presented their report to the assembled leaders.
• Asachel acknowledged that the Fallen Angels had been in the wrong.

At the Tripartite Conference, Asachel acknowledged the incident and proposed that the Three Great Factions make peace. Sirzechs agreed that the devils did not want to be annexed by other forces.

• Asachel offered compensation for his dereliction of duty and promised to keep his subordinates under tighter control, while Su Yang signaled Rias not to object.
• Asachel said Su Yang had defeated Kokabiel and Vali, even while Vali used Juggernaut Drive, and Vali confirmed that Su Yang had defeated him before.
• Su Yang objected to Asachel turning the conference into a personal evaluation and coughed up golden blood, drawing everyone's attention.
• Asachel proposed a peace treaty among the Three Great Factions, warning that continued infighting could leave them vulnerable to other forces.
• Sirzechs said the devil side did not want to see the Three Great Factions annexed.

The leaders of the Three Great Factions agreed to pursue a peace treaty and create a joint squad to deal with rogue forces. Sirzechs proposed Su Yang, Diorio, and Kisesu Itsuo as its members.

• Michael, Su Yang, Kisesu Itsuo, Vali, and Diorio voiced no objections to peace.
• Sirzechs argued that the factions needed a way to punish dangerous forces like Kokabiel even after a treaty was signed.
• Sirzechs proposed a joint squad of the Three Great Factions to respond to such threats, and Michael approved.
• Sirzechs named Yang-kun for the devils, Michael named Diorio for Heaven, and Asachel named Blade Dog for the Fallen Angels.

As the leaders prepared to sign a peace treaty, the Old Maou Faction and Hero Faction trapped them in an Exotic Space and incapacitated many attendees with poison. Su Yang recognized the attackers as targets of a sign-in challenge and faced the three descendants of True Demon Lords as their reinforcements arrived.

• Asachel, Sirzechs, and Michael agreed to sign the peace treaty, but an interruption stopped the proceedings.
• The Old Maou Faction and Hero Faction used Dimension Lost to transfer Kuoh Town and Kuoh Academy into an Exotic Space.
• Su Yang identified Sharuba Beelzebub, Cardiaceae Leviathan, and Cruzeray Asmodeus as the targets of his sign-in challenge to instantly kill them.
• Cardiaceae released a secret poison that caused Sona, Tsubaki Shinra, Akeno Himejima, Yuto Kiba, Irina, and others to collapse.
• Cardiaceae announced that their companions were descending and that the fallen attendees would be taken captive.

Su Yang trapped the descending Khaos Brigade forces in a magical barrier, then identified Hapogga and her Longinus, which unleashed Yamata no Orochi’s soul against it. As Serafall faced a challenge from Cardiaceae, Su Yang stepped in to protect her from the demon lord heir.

• Su Yang formed a barrier that trapped Sharba, the mages, and the Old Maou Faction devils outside.
• Hapogga descended with the Holy Cross and activated the Execution Platform of the Purple Flame Priest, unleashing Yamata no Orochi’s soul.
• Su Yang explained the Longinus’s power and sent everyone to rescue their people before the barrier gave way.
• Cardiaceae challenged Serafall for the demon lord’s throne, and Su Yang stepped between them.
• Cadilena demanded to know how a human could interfere in a matter between demon lords.

Su Yang challenged the three Old Maou, whose power had been boosted by Ophis's Snake, while his allies prepared to defend his Magic Circle. As Sharba began an attack, Su Yang froze him with his Longinus and activated the Sacred Heart of the World Dragon.

• Su Yang revealed that he had defeated Serafall and offered to fight the Old Maou himself.
• Sharba recognized Su Yang as Ajuka's disciple and agreed to confront him.
• Asachel and Michael sent Kisesu Itsuo and Diorio to support Su Yang while they went to protect his Magic Circle.
• Kisesu Itsuo explained that Ophis's Snake had greatly enhanced Cardiaceae, Cruzelei, and Sharba.
• Sharba formed a Magic Circle to attack, but Su Yang froze him with the Evil Eye King of Space-Time Domination and released the Sacred Heart of the World Dragon.

Su Yang revealed his World Dragon Balance Breaker and challenged the seven opponents to attack him together. He neutralized their magic and stopped Sharba and Cruzelei in time, leaving Cardiaceae free to attack while he turned his attention elsewhere.

• Su Yang activated Kurma Dragon Balance Breaker and Juggernaut Drive, then summoned Esther and loaded the power of Star Sword Excalibur into it.
• Diorio told Kisesu Itsuo that he could no longer use magic, and Kisesu confirmed it.
• The True Demon Lords discovered that their magic had also stopped working, and Cardiaceae accused Su Yang of causing it.
• Su Yang released Aion Barroll and froze Sharba and Cruzelei in time.
• Cardiaceae charged at Su Yang with her enhanced powers, but he said he would not deal with her yet and focused on the two others.

Su Yang unleashed the Holy Sword’s full power and erased the two old Demon Kings, ruining Cadilena’s plans to claim the Demon King’s throne. When Cadilena tried to hold him with life-force tentacles, Su Yang summoned Kalki, the White Horse, and released a wave of white Salvation Flame.

• Su Yang released all thirteen seals on the Holy Sword and destroyed the two old Demon Kings with Excalibur.
• Kisesu Itsuo asked whether the big dog could withstand Su Yang’s attack, and the dog shook its head.
• Cadilena realized the old Demon Kings’ deaths had ruined her chance to reclaim the Demon King’s throne, then grabbed Su Yang with tentacles formed from her life force.
• Su Yang warned Kisesu Itsuo and Diorio to flee, and both escaped at full speed.
• Su Yang invoked the Avatar of Kalki, the White Horse, and unleashed white Salvation Flame.

Su Yang killed Cadilena, gained and fused the God of the Bible Essence, and formed a connection to Diorio through faith. He then headed to support Sirzechs's side while the leaders of the three realms maintained his defensive Magic Circle.

• Su Yang's attack erased Cadilena and severely damaged the Exotic Space, triggering a Diamond Plot Sign-in that rewarded him with the God of the Bible Essence.
• Su Yang fused the essence and noticed a golden thread of faith power connecting him to Diorio.
• Su Yang told his companions to go support Sirzechs and the others protecting the three realms' mid-level fighters.
• Asachel praised Su Yang's Magic Circle and asked Sirzechs how he had found him; Sirzechs said Rias had met him by chance.
• Gabriel asked Serafall whether Su Yang had defeated her instantly, upsetting Serafall despite Gabriel's lack of intent to mock her.

Su Yang destroyed Cardiaceae with Solar Flare of Salvation while Serafall and Gabriel watched. Vali then betrayed Asachel and attacked the barrier with Hapogga, but Su Yang appeared before he could escape.

• Gabriel and Serafall watched a powerful flash from the battle and sensed its threat to the Exotic Space.
• Su Yang used Solar Flare of Salvation to reduce Cardiaceae to dust, easing Serafall’s fears.
• Vali activated Balance Breaker and joined Hapogga in attacking the barrier, injuring Asachel as he betrayed him.
• Vali told Asachel he had joined The Khaos Brigade to seek greater strength and began planning his escape.
• Su Yang appeared above Vali and asked whether he had figured out how to run away.

Su Yang triggered a sign-in plot about Vali's embarrassing chuunibyou notebook and teased Vali by pretending to have obtained it from Lavinia. The chapter left Vali exposed before the gathered fighters as Su Yang read his grandiose lines aloud.

• Su Yang saw a Gold-level sign-in prompt about Vali's chuunibyou setting collection, which Lavinia possessed.
• Vali announced that he was Vali Lucifer, a descendant of the True Demon Lord, and spread his four pairs of devil wings.
• Sirzechs recognized Vali's connection to Lee Zevim Lucifer, while Asachel remarked that Ophis was the true leader of The Khaos Brigade.
• Su Yang claimed Lavinia had given him Vali's notebook and began reading Vali's chuunibyou lines to the gathered fighters.

Su Yang exposed Vali’s chuuni writings, humiliating him while earning a new contract power from his sign-in. As the Old Maou Faction’s defeat became inevitable, Su Yang prepared to end the battle with a lightning attack.

• Su Yang imitated Vali and read aloud passages from Vali’s chuuni collection, making Asachel laugh and leaving Vali humiliated.
• Su Yang completed a plot sign-in based on Vali’s collection and received Origin Mithra Contract Authority.
• Su Yang put away the collection and asked Vali whether he was running away.
• Vali accepted that the Old Maou Faction had lost and prepared to retreat.
• Su Yang raised his hand and unleashed Ten Thousand Bolts of Lightning toward the battlefield.

Su Yang used a modified spell to wipe out the Khaos Brigade grunts and destroy his Magic Circle, while Vali transformed into Juggernaut Drive and carried Hapogga away. Su Yang then launched the Myoken Divine Wheel after Vali.

• Su Yang unleashed Urgent Thunder, filling the sky with lightning that struck the battlefield and his Magic Circle.
• Diorio recognized the extraordinary scale of Su Yang's thunderstorm, and Su Yang received a Mysterious Egg through a plot sign-in.
• The lightning cleared the battlefield and destroyed Su Yang's Magic Circle.
• Vali activated Juggernaut Drive and snatched Hapogga away from Kisesu Itsuo and Diorio.
• Su Yang sent the Myoken Divine Wheel after Vali as he fled with Hapogga.

Su Yang defeated Hapogga and let Vali escape, then returned everyone to the Human World to continue signing the contract. Though he coughed up golden blood, his Magic Formulas let him channel Kurma’s immense Spiritual Power into devastating attacks.

• Vali tossed Hapogga into Su Yang’s attack and fled, while Hapogga summoned the flaming Yamata no Orochi to weaken the Myoken Divine Wheel.
• The Myoken Divine Wheel swallowed Hapogga and the flaming Yamata no Orochi, while Vali survived with Juggernaut Drive and escaped without pursuit.
• Su Yang explained that he had spared Vali, then the group returned to the Human World as Dimension Lost dissipated.
• Su Yang coughed up golden blood, and the others wondered how he could still fight so fiercely after being crippled.
• Su Yang’s Magic Formulas converted Kurma’s Spiritual Power into powerful attacks, a technique he expected to strengthen further.

Su Yang joined the Three Great Factions as they formed a peace alliance and created a joint squad to protect its stability. He delegated routine work to Blade Dog and Diorio, saying he would focus on school unless they faced a serious problem.

• Su Yang reflected on the automatic operation system and the magic arrays operating within his body before rejoining the meeting.
• The leaders of the Three Great Factions agreed to stop invading one another and unite against foreign pantheons.
• The factions appointed Su Yang as joint squad captain, Diorio as vice-captain, and Blade Dog as executive captain.
• Michael, Asachel, and the other leaders signed a peace contract, ending 763 years of hostility between the Three Great Factions.
• Su Yang left routine missions to Blade Dog and Diorio because of his schoolwork and final exams.
• Diorio asked whether Su Yang could arrive in time if the squad encountered trouble.

Su Yang reunited with Irina after she became an angel and praised her new role, then asked to touch her wings. Touching them triggered a Silver sign-in and rewarded him with Omnipotent Wings.

• Su Yang said goodbye to two acquaintances and went to find Irina, who was waiting beside Michael.
• Su Yang asked Irina about becoming an angel, and she proudly showed him her white wings.
• Su Yang praised Irina's suitability as an angel, reassuring her and making her smile.
• Irina agreed to let Su Yang touch her wings, and he gently stroked them.
• Su Yang triggered a Silver sign-in at Irina Shidou's wings and received the Omnipotent Wings.