Chapter Summaries

Su Yang showed Issei how to overcome Juggernaut Drive’s resentment and use its power without negative energy, then attacked Vali with the Three Holy Swords. Vali was left badly injured and Kokabiel was annihilated, while Asachel watched and treated the encounter as a lesson for Vali.

• Su Yang combined Juggernaut Drive with the World Dragon Armor, achieving a form without resentment or negative energy.
• Su Yang urged Issei to use his dreams and ambitions to overcome the Sacred Gear seniors’ resentment and defeat Vali.
• Su Yang fired the Three Holy Swords from the Brahmadatta Bow and headed back to Kuoh Academy.
• Vali sensed the attack and poured his power into defending himself, but the Star Sword shattered his barrier and the Blade of Salvation battered him.
• The Demon-Slaying Holy Sword passed through Kokabiel and annihilated him.
• Asachel watched Vali fall in Juggernaut Drive and considered the beating a lesson that would curb his confidence.

After Su Yang killed Kokabiel, he gained the Thunder Path and restored Kuoh Academy, while Vali accepted his defeat with renewed determination. With the battle over, Sona embraced Su Yang, and Rias turned her attention to Xenovia; the story then shifted to the Sitri family’s territory in the Underworld.

• Vali’s Juggernaut Drive faded, and he laughed happily despite his injuries as Asachel warned him that his fighting obsession could lead to his death.
• Su Yang completed a Diamond plot sign-in for killing Kokabiel and gained the Three Thousand Paths—Thunder Path, which dramatically changed his body and Spiritual Power.
• Rias asked whether Kokabiel was dead, and Su Yang confirmed it before announcing that the battle was over.
• Su Yang used a Magic Circle to restore the damaged Kuoh Academy, and Sona embraced him in relief.
• Rias noticed Xenovia sitting on the ground with her faith shattered and decided to approach the Holy Sword User.

Theodora visited the Astaroth family, while Su Yang went to Kuoh Academy with Aisha on teaching observation day and encountered Cao Cao. Cao Cao confronted Su Yang over Jeanne, and their conversation was left unresolved.

• Theodora presented his calling card at the Astaroth residence and said he had come to visit, then vowed to reclaim what belonged to him.
• After checking his sign-in, Su Yang headed to the academy with Aisha and learned that students' parents would be visiting for teaching observation day.
• Su Yang noticed Cao Cao waiting at the school gate and greeted him.
• Cao Cao said he did not want to expose himself before the Three Great Factions, then accused Su Yang of luring Jeanne away from him.

Su Yang dismissed Cao Cao’s ambitions and went to school with Aisha, where Tsubaki Shinra urgently summoned him to the Student Council room. Sensing a familiar aura inside, Su Yang realized that someone had gone further than expected and that he had forgotten to retrieve something.

• Cao Cao confronted Su Yang over Jeanne and asked about devouring infinity and dreams, but Su Yang challenged him to prove he could do it.
• Su Yang left Cao Cao and explained to Aisha that he was merely an idiot with dreams.
• During school observation day, Su Yang studied in class until Kiryu Aika told him that Tsubaki Shinra wanted to see him.
• Tsubaki Shinra said the President needed Su Yang urgently, and they went to the Student Council room.
• Before entering, Su Yang sensed a familiar aura and realized he had forgotten to retrieve something.

Su Yang met Rebel Phoenix when she arrived at Kuoh Academy as a demon intern, and agreed to show her around. They left the Student Council room together, with Su Yang suspecting that an unusual change in their relationship had prompted her early transfer.

• Su Yang entered the Student Council room and greeted Rebel, who blushed when he reminded her of the wedding dress he had left with her.
• Sona introduced Rebel as Raiser Phoenix’s younger sister and explained that she would study at Kuoh Academy and Kuoh University while training as a demon.
• Rebel apologized for her brother’s match with Rias and gave Su Yang three bottles of Phoenix Tears for his injuries.
• Sona asked Su Yang to show Rebel around because the Student Council members were busy, and he agreed.
• Su Yang and Rebel left the room, and he suggested visiting her class, where she would be with Koneko.

Su Yang discovered that Rebel had used his blood to undergo Nirvana, greatly increasing her power and potential. He accepted her explanation, while a sign-in prompt urged him to take Rebel as his servant within 30 days.

• Su Yang triggered a Gold Plot Sign-in that required him to take Rebel Phoenix as his servant within 30 days.
• Su Yang sensed a connection with Rebel and asked whether his blood flowed through her.
• Rebel admitted that she had used a Phoenix Family secret technique and Su Yang's blood to complete Nirvana.
• Rebel explained that the blood had raised her strength and potential, and Su Yang accepted her explanation.

Su Yang learned that Rebel alone had integrated his bloodline and asked her to take only female Servants in the future. As the tour continued, he and Rebel met Sirzechs, who introduced himself and invited Su Yang to call him Brother.

• Su Yang asked Rebel how many people had integrated his bloodline, and Rebel admitted she was the only one and apologized.
• Su Yang asked Rebel to take only female Servants, and she agreed despite wondering what he meant.
• Su Yang and Rebel continued touring the academy, where Rebel encountered Koneko and they had a cat-versus-bird battle.
• Su Yang spotted Sirzechs, and Sirzechs walked over after Grayfia delivered documents for him to sign.
• Su Yang introduced himself to Sirzechs, who said he was Rias's Brother and invited Su Yang to call him Brother too.

Su Yang fused the Magic Eyes of the World Annulment with Forbidden Invade Balor the Beast, creating a new Longinus. After escorting Sirzechs to Rias’s classroom, he was left alone with Grayfia, who said she had something important to discuss.

• Sirzechs declared that he stood on Su Yang’s side, and their handshake triggered Su Yang’s daily sign-in reward: Forbidden Invade Balor the Beast.
• Su Yang fused the Sacred Gear with his Magic Eyes and obtained the Longinus Evil Eye King of Space-Time Domination.
• Sirzechs asked Su Yang to take him to Rias’s classroom, unsettled by the strange feeling Su Yang’s glance gave him.
• Su Yang escorted Sirzechs and Rebel to the classroom, where Sirzechs went to sit near Rias.
• Grayfia asked Rebel for a private moment with Su Yang, and Rebel agreed to let them speak alone.

Grayfia confronted Su Yang in her Exotic Space and asked whether he had slept with Rias, which he confirmed. A Gold-level sign-in challenge then tasked him with defeating Grayfia and earning her approval within three days, but Su Yang decided not to pursue it and prepared to leave.

• Grayfia brought Su Yang to her Exotic Space to question him.
• Grayfia asked whether Su Yang had already “held” Rias, and Su Yang answered that he had.
• Su Yang triggered a Gold-level sign-in challenge to defeat Grayfia and obtain her approval within three days.
• Su Yang decided not to attempt the challenge and told Grayfia he was leaving.

Su Yang challenged Grayfia after she warned him that his power could provoke the Underworld’s old factions. He trapped her in the space and transformed into the World Dragon Armor, while Grayfia prepared to fight and corrected his mistaken assumption that she was Sirzechs’s wife.

• Grayfia warned Su Yang that his actions could stir up chaos and make him a target, and urged him to consider the other factions.
• Su Yang rejected Grayfia’s warning and told her to test his strength herself, revealing that he had taken control of the space and blocked her exit.
• Su Yang activated the World Dragon Balance Breaker and unleashed power he said could reach the level of a High-tier Demon Lord.
• Grayfia recognized Su Yang’s armor and released an aura as powerful as Serafall’s.
• Grayfia corrected Su Yang, explaining that she was Sirzechs’s Queen but had not become his wife, and Su Yang prepared to continue the fight.

Su Yang used his Golden Sword to confirm that Grayfia had told the truth, then attacked her while she was unable to use magic. The fight ended with a Gold-level Plot Sign-in, though Su Yang’s reason for stopping remained unclear.

• Su Yang used the Golden Sword to learn that Grayfia had not lied, though a small portion of knowledge remained inaccessible to him.
• Su Yang formed a Magic Ban Domain and sent Word Spirit Swords at Grayfia, who responded by relying on her physical strength.
• Su Yang struck Grayfia with Thunder Path lightning, piercing her defenses and then pelting her with more sparks.
• After half an hour of attacks, Su Yang stopped when he unexpectedly completed a Gold-level Plot Sign-in.

After defeating Grayfia, Su Yang healed her, then used Krishna Incarnation Original to glimpse what he wanted to know, at the cost of coughing up blood. Back on campus, he found Heige watching Koneko’s class and grabbed the black cat’s tail.

• Su Yang received the World-Class Item Mountain River Society Diagram after defeating Grayfia with lightning radiance.
• Su Yang healed Grayfia and withdrew the World Dragon Armor, and Grayfia left the Exotic Space angrily.
• Su Yang used Krishna Incarnation Original to see what he wanted, then returned to campus coughing up blood.
• Su Yang noticed a black stray cat watching Koneko’s clay sculpture of his World Dragon armor and went to Koneko’s classroom.
• Su Yang confronted Heige, who cried out when he grabbed her tail, while Koneko was the only one in class who noticed.

Su Yang reassured Heige that Koneko would be safer with him and warned her about powerful devils who might capture her. The sisters then argued playfully over Su Yang, ending with him knocking both of them on the head.

• Su Yang warned Heige that a Transcendent might come after her, and Heige admitted she trusted him to protect Koneko.
• Heige asked Su Yang not to let Koneko have children before she came of age because it could endanger Koneko and the child.
• Su Yang teased Heige by suggesting she wanted to bear a child with him, and Heige flirted with him in response.
• Koneko appeared, hugged Su Yang's arm, and insisted she would not give him to Heige.
• Heige teased Koneko about competing for Su Yang, and Su Yang knocked both sisters on the head.

Su Yang promised to protect Koneko, then answered Sona’s call for help and freed her from Serafall’s embrace. He reminded Serafall that she owed him for their wager and confronted her with the Word Spirit Sword.

• Su Yang assured Heige that Koneko could live safely and peacefully, and Koneko and Heige resumed teasing each other over him.
• Su Yang stopped the sisters’ increasingly suggestive argument and coughed up blood to distract them.
• After Sona called for help, Su Yang left the sisters and found Serafall holding Sona in a Magical Girl outfit.
• Su Yang struck Serafall with lightning, allowing Sona to escape her embrace.
• Su Yang reminded Serafall that she had agreed to his conditions if she lost and had taken his discs, then produced the Word Spirit Sword.

Su Yang reminded Serafall of her promise after defeating her, and she fled rather than honor it. He told Sona he had fought Serafall to earn her approval, then asked about her and Rias’s standing among the younger devils.

• Su Yang brought up the Magical Girl Milky bonus disc, and Serafall admitted nothing, then fled when he pressed her about their promise.
• Sona asked whether Su Yang had really fought Serafall, and he confirmed that he had defeated her.
• Su Yang told Sona he had challenged Serafall to earn her approval so he could stay by Sona’s side.
• Sona grew angry, thinking Serafall had forced Su Yang into the fight, but Su Yang calmed her and said he had accepted the challenge confidently.
• Su Yang asked Sona whether she and Rias were among the Underworld’s most outstanding young devils, and Sona agreed.

Su Yang triggered a Gold location sign-in at Asachel's wings and headed out to find the Governor-General of the Fallen Angels. Meanwhile, Akeno Himejima returned to meet the wealthy client who had hired her, leaving their encounter to unfold.

• Sona reminded Su Yang that her parents wanted to meet him during summer vacation, and he agreed to visit the Underworld with her.
• Su Yang received a Gold location sign-in for Asachel's wings, with a one-day time limit.
• Su Yang asked Amano Yuma whether she wanted to see Asachel, but she said she would meet him only after becoming strong enough to defeat him.
• Su Yang left home and followed information relayed through his Narasimha Avatar to a designated location in Kuoh Town.
• Akeno Himejima returned to a wealthy residential area to meet the client who had paid her generously for work the previous day.

Akeno Himejima discovered that her client Asachel had summoned Bael to eat her cooking, prompting her to confront the Fallen Angel about his connection to her father. Su Yang revealed Asachel’s identity and role as leader of the Fallen Angels, who had come to inspect the Tripartite Conference venue.

• Akeno Himejima cooked a meal for her wealthy client and found a black feather bearing Bael’s aura.
• Akeno asked Asachel what his relationship with Bael was, and he admitted he had invited Bael to eat her cooking.
• Akeno demanded to know why Asachel was in Gremory territory and produced Bael’s feather as evidence.
• Su Yang appeared and identified Asachel as the Lecherous Governor of Fallen Angels.
• Asachel confirmed that he led the Fallen Angels and had come to inspect the venue for the Tripartite Conference.

Su Yang arrived when Asachel confronted Akeno, plucked a feather to complete a sign-in, and gained the Saint Body Constitution. He then learned Asachel had come to inspect the conference venue and demanded compensation for Vali’s actions, leaving Asachel agreeing to send practical Artificial Sacred Gears.

• Su Yang appeared beside Akeno after she was surprised to see Asachel, then swiftly plucked one of Asachel’s feathers.
• Su Yang’s sign-in at Asachel’s wing rewarded him with the Saint Body Constitution, which fused into his body and briefly manifested Stigmata.
• Asachel explained that he had come to inspect the conference venue and noted Su Yang’s Immortal Arts and Battle Qi.
• Su Yang asked whether Asachel had directed Vali’s intrusion into Kuoh Academy and demanded compensation for the harm caused by Kokabiel’s actions.
• Asachel agreed to send Su Yang several practical Artificial Sacred Gears, and Su Yang said he would make sure Asachel did not take a loss.

Su Yang brought Akeno Himejima to her shrine, where she asked whether he could still promise her a bright future after seeing her mixed devil and Fallen Angel wings. The chapter ended with Akeno waiting for his answer.

• Su Yang offered to have Asachel train Issei Hyoudou, and Asachel agreed in exchange for a chance to study Su Yang.
• Asachel tried to persuade Su Yang to let him study him, but Su Yang refused and left with Akeno Himejima.
• Su Yang and Akeno arrived at her shrine, where she served him tea and asked about what he had learned of her past through Apocalypse.
• Su Yang assured Akeno that her future would be bright, then triggered a Silver Location Sign-in at her wings.
• Akeno revealed her devil and Fallen Angel wings and asked Su Yang whether he still meant what he had said.

Su Yang comforted Akeno Himejima about her mixed devil and Fallen Angel bloodline and gained a magical tome through a sign-in. He prepared to attend the Three Great Factions' meeting with Artoria, who was becoming increasingly powerful.

• Akeno Himejima lamented that she carried both devil and Fallen Angel bloodlines, and Su Yang reassured her that mixed heritage could produce strength.
• Su Yang used Vali, the human-devil hybrid White Dragon Emperor, as an example and told Akeno she did not need to hate her bloodline.
• Su Yang stroked Akeno's wings and completed a Silver-level location sign-in, earning the Compendium of Sorcery Integration.
• Su Yang removed Akeno's lip print before going to school and recalled that Rias had summoned him ahead of the Three Great Factions' meeting that night.
• Su Yang told Artoria he had gone to bed late, and reflected that absorbing the Knight piece had brought her close to Transcendent strength and eventual godhood.