Chapter Summaries

Su Yang warned Ajuka that Lee Zevim needed to be found and killed before he could summon Beast Emperor 666, preserving the world’s strongest fighters for the coming invasion from the EXE World. Ajuka agreed to take the matter to Sirzechs, and the chapter ended with Ajuka asking what had happened with Lee Zevim.

• Ajuka concluded that Su Yang had not challenged Hades because he was not yet confident he could defeat him, and said the Underworld would soon be able to handle the Hell Alliance Leader.
• Su Yang asked Ajuka to discuss an urgent matter with Sirzechs.
• Su Yang explained that Lee Zevim, son of the True Lucifer Demon Lord, had to be found and killed before he could sacrifice himself to summon Beast Emperor 666.
• Su Yang described the EXE World’s powerful enemies and the future losses that would leave the DXD World vulnerable to its invasion.
• Ajuka asked Su Yang what had happened with Lee Zevim.

Su Yang told Ajuka that Lee Zevim would endanger the world and urged him to act quickly. Grayfia warned Su Yang that Theodora’s confidence and lack of preparation seemed suspicious as Su Yang awaited their match.

• Su Yang told Ajuka that Lee Zevim had to be eliminated because he would threaten the world in the future, and Ajuka went to inform Sirzechs.
• Grayfia said she wanted to kill her brother Euclid herself, and Su Yang offered to kill him if they met.
• Grayfia warned Su Yang that Theodora had been acting unusually and might have allied with forces outside the Devils.
• Su Yang thanked Grayfia and said he was confident he could defeat whoever stood behind Theodora.

Su Yang reincarnated the sleeping Ingvild with a God's Familiar Chess Piece, hoping to cure her illness, and she awakened with greatly increased strength. She opened her eyes and asked whether Su Yang was Mr. Dragon.

• Grayfia left after attending to official business, and Serafall teased Su Yang about his upcoming appointment with Sona.
• Su Yang sent Serafall and Asachel out of Ingvild's hospital room so he could try to wake her.
• Su Yang used a golden God's Familiar Chess Piece to reincarnate Ingvild, causing her Leviathan bloodline to evolve or revert to its origins.
• Ingvild's vitality increased, and she awakened after more than ten minutes.
• Ingvild asked Su Yang whether he was Mr. Dragon.

Su Yang told Ingvild that he had cured her sleeping sickness by reincarnating her as his Servant, and she accepted her new status. The next day, he returned to the Sitri territory with Sona, while Tsubaki Shinra wondered whether Sona could accept Su Yang’s many ties with other women.

• Su Yang told Ingvild her sleeping sickness was cured and explained that he had made her his Servant.
• Ingvild accepted the change, thanked Su Yang, and began calling him Yang-kun.
• Su Yang returned to the Sitri territory with Sona, whose parents had left for a trip to the Human World.
• Tsubaki Shinra followed Sona and Su Yang into the castle and considered Su Yang a strong partner for Sona.
• Tsubaki wondered whether Sona could accept Su Yang’s connections with many women and gossiped about their relationship.

Su Yang visited Sona’s study and played chess against his Krishna Avatar while Sona watched, then spent the evening with her discussing the Underworld’s artificial moon. He asked about the upcoming competition, which was only a few days away.

• Su Yang activated his Eighth Incarnation, Krishna, and played chess against the Avatar in Sona’s study.
• Sona became absorbed watching Su Yang and his Avatar play, while Tsubaki Shinra observed without understanding their strategy.
• Su Yang noticed the door to Serafall’s room, and Sona explained that it belonged to her sister.
• Su Yang and Sona watched the moon from the castle that evening, and Sona explained that the Underworld’s moons were magical constructs.
• Su Yang asked Sona whether the competition was in a few days.

Su Yang reassured Sona that he could defeat Theodora, then confirmed that he had been intimate with Rias and that it had contributed to her growth. Sona asked Su Yang for compensation, leaving their relationship poised to deepen.

• Sona asked whether Su Yang knew about Theodora's unusual behavior, and Su Yang said he could defeat him.
• Su Yang reassured Sona and promised to drive Theodora back.
• Sona discussed chess and Rating Games with Su Yang before asking whether he had been intimate with Rias.
• Sona explained that she had noticed Rias and Rebel Phoenix growing stronger, and Su Yang confirmed that Rias had accepted some of his power.
• Sona told Su Yang she wanted compensation and softly said, "I want you..."

Serafall rushed back to the Sitri Territory to keep Su Yang away from Sona, but Su Yang spotted her and knocked her down with the Word Spirit Sword. Sona sided with Su Yang, and he began a lesson with Serafall as the completed sign-in plot awarded him Top-tier Magic Divine Talent.

• Serafall hurried from the Demon King's territory, worried that Su Yang would spend too much time alone with Sona.
• Serafall spotted Su Yang and Sona, but Su Yang detected her and struck her with the Word Spirit Sword.
• Su Yang asked Sona to help him deal with Serafall, and Sona agreed despite Serafall's pleas.
• Su Yang said he would review his lessons with Serafall and began teaching her.
• The sign-in system announced that Su Yang had completed the Diamond-level plot sign-in and received Top-tier Magic Divine Talent.

Tsubaki Shinra went to wake Sona and unexpectedly walked in on an intimate scene involving Sona and Su Yang, leaving her mortified. Later, she served tea while Sona and Su Yang discussed how to deal with Theodora, still questioning what she had witnessed.

• Tsubaki noticed Sona was absent from their usual morning training and went to wake her.
• Tsubaki heard strange sounds from Sona’s room and feared Leviathan was there with her.
• Tsubaki opened the door and found Sona and Su Yang together, then deeply regretted returning to the Sitri Territory.
• Tsubaki poured Sona tea while Sona and Su Yang discussed how to deal with Theodora, and she continued to doubt what she had seen.

Sona chose a simple strategy for the match against Theodora, trusting Su Yang to attack while she and the others stayed in the main camp. As the Underworld-wide match began, Su Yang prepared to leave the camp and face his opponents.

• Tsubaki Shinra agreed to trust Su Yang after Sona explained the strategy.
• Su Yang said he looked forward to defeating Theodora, whom he believed had betrayed them and colluded with others.
• Grayfia explained the match rules and warned Su Yang not to kill Theodora.
• Grayfia teleported both teams into Ajuka's Exotic Space, and Su Yang gave Sona a golden chess piece.
• Su Yang told Sona and the others that he would leave the main camp first.

Su Yang sealed the Exotic Space so no one could escape, then left Sona and the others to face the battlefield alone. He arrived in the wilderness in his World Dragon form, where Loki appeared and a new sign-in challenge tasked him with facing Fenrir’s attack.

• Su Yang sealed the path out of the Exotic Space, trapping everyone inside in Deathmatch Mode.
• Hanae Momo, Yura Tsubasa, Tsubaki Shinra, and Sona wished Su Yang well before he departed; Sona adjusted his clothes and embraced him.
• Su Yang arrived at the central wilderness battlefield and transformed into Kurma Incarnation: Overlimit.
• Loki appeared before Su Yang, and the system issued a Gold sign-in challenge requiring him to face Fenrir’s attack head-on.

Su Yang confronted Loki and his summoned beasts, then endured Fenrir’s God-Slaying Fang without being harmed and gained an enhanced god-slaying weapon. He turned the Word Spirit Sword on Loki and manifested Narasimha as the fight continued.

• Loki summoned Fenrir, Hati, Skoll, and a replica of Jörmungandr to kill Su Yang and advance Ragnarok.
• Su Yang activated his Fourth Incarnation and let Fenrir bite him, but Fenrir’s fangs failed to pierce him.
• Su Yang completed a Gold sign-in and received a God-Slaying Fang attachment for his weapon.
• Su Yang copied Loki’s magic formulas, enhanced the Golden Sword with the God-Slaying Fang, and targeted Loki.
• Loki called Fenrir back to protect him as Su Yang manifested Narasimha behind himself.

Su Yang defeated Loki’s forces and confronted the Evil Dragons that Theodora had sent into the Exotic Space. After Grayfia delivered Odin’s message disowning Loki’s actions, Su Yang recognized the dragons and revealed he knew Lee Zevim was nearby.

• Loki ordered his Dragon King clones to attack Su Yang, who summoned the Varaha Avatar and overwhelmed them.
• Su Yang pinned Loki and prepared to stab him as Grayfia arrived to deliver Odin’s message that the Norse Pantheon would not interfere.
• Heige and Arthur remained outside the Exotic Space because Su Yang had not allowed them to enter.
• Grendel, Nidhogg, and Ladon appeared as Evil Dragons revived through the Holy Grail, each carrying one of Theodora’s pieces.
• Su Yang asked whether Lee Zevim had come, and Grendel and Ladon wondered how he knew about him and whether he could face a Heavenly Dragon Level expert.

Su Yang killed Loki and revealed that he had sent his powerful Servants to protect Sona, where Tiamat was fighting Lee Zevim. As Narasimha and Varaha prepared to finish the remaining enemies, Su Yang turned to wrap up the battle at his own location.

• Grendel celebrated after Su Yang stabbed the sealed Loki with the god-slaying Golden Sword, killing him.
• A dragon’s roar revealed that Tiamat was fighting Lee Zevim, and Su Yang explained that he had given Sona his King Chess Piece so she could summon his Servants.
• Su Yang confirmed that Tiamat and his other powerful Servants, including Issei Hyoudou, Shiro, Shuby, Artoria Pendragon, and Ingvild, had been sent to protect Sona.
• Ladon questioned whether Su Yang was the man Tiamat had called hers, while Su Yang rejected the name Rama and summoned golden Word Spirit Swords.
• Su Yang said Tiamat could defeat Lee Zevim, and Narasimha and Varaha prepared to finish the fight after dealing with Fenrir and the Dragon King replicas.

Sona’s group faced Lee Zevim, who sought to take Su Yang’s bloodline and power. After Sona used Su Yang’s chess piece to summon reinforcements, Lee Zevim launched an attack despite their overwhelming strength.

• Grendel transformed into an evil dragon and charged into battle.
• Sona grew nervous as she waited with Tsubaki and her other Servants, clutching the golden chess piece Su Yang had given her.
• When Lee Zevim attacked, Sona activated the chess piece, summoning Tiamat, Issei Hyoudou, Artoria, and Ingvild.
• Ingvild’s song empowered the summoned fighters, stabilizing Tiamat, evolving Issei into True Queen Form, and raising Artoria to the Transcendent realm.
• Lee Zevim decided to use his final means and attacked, aiming to take part of Su Yang’s body and claim his bloodline and power.

Su Yang and his allies fought off Lee Zevim’s Evil Dragon forces, while Artoria unleashed Rhongomyniad against him. After destroying the replicas and firing a final arrow at the distant target, Su Yang completed a sign-in and chose to fuse the Saint Path.

• Artoria began releasing Rhongomyniad’s restraints and prepared to attack Lee Zevim, who tried to evade the Holy Spear.
• Grayfia suppressed several Evil Dragon replicas while Su Yang used Dragon Annihilation - Skyfall to destroy the remaining replicas on the battlefield.
• Su Yang told Grayfia they would find Lee Zevim, since the Evil Dragons could return as long as he possessed the Holy Grail.
• Su Yang charged the Brahmadatta Bow and fired Heavenly Arrow, Final Curtain of the Three Realms at a distant target.
• The system awarded Su Yang the Saint Path for completing the Plot Sign-in, and he chose to fuse it.

Su Yang obtained the awakened Avatar—Saint Awakener and joined Grayfia to confront Lee Zevim. After reassuring Sona, Tsubaki Shinra, and Ingvild, he trapped Lee Zevim without reinforcements and prepared to fight him with God-Slaying swords.

• Su Yang merged the Ninth Incarnation Buddha and Three Thousand Paths—Saint Path, obtained the awakened Avatar—Saint Awakener, and sensed that its power came from within him.
• Su Yang took Grayfia with him using the Avatar of Vamana, while Lee Zevim realized that Su Yang had sealed the space and left him unable to bring reinforcements.
• Sona explained to Tsubaki Shinra that the attackers were hypothetical enemies Su Yang had anticipated, and Ingvild told them that Su Yang was her master and savior.
• Ingvild spotted Su Yang arriving, and Sona and Tsubaki Shinra watched as he confronted Lee Zevim.
• Su Yang told Lee Zevim to give up, then drew Holy Sword Esther and a golden Word Spirit Sword imbued with the God-Slaying attribute.

Su Yang tried to kill Lee Zevim with a Golden Sword infused with Fenrir’s power, but Lee Zevim revealed that he had allied with forces from the EXE world. The sky shattered as Durumado arrived, leaving Su Yang facing a Red Dragon God Emperor-level enemy and its Servants.

• Su Yang forged a Golden Sword meant to kill Lee Zevim and confronted him over his plan to release the Beast Emperor.
• Lee Zevim revealed that he knew about Su Yang’s otherworldly origins and mocked his preparations against him.
• Lee Zevim caused the sky to shatter, exposing a Dimensional Rift and a gigantic mechanical dragon named Durumado.
• Su Yang realized Lee Zevim had joined forces with people from the EXE world instead of simply preparing to release the Beast Emperor.
• Durumado descended with its Servants and declared that it would capture Su Yang and offer him to its Lord.

Su Yang sent Sona and the others back to the Human World before facing Sea King Durumado and his Servants. When Durumado attacked, Su Yang used a miniature Underworld Great Array to block his blast, and Durumado escalated with an all-out cannon.

• Su Yang sent Sona and the others to the Human World, where the pantheons could protect them.
• A Diamond-level sign-in tasked Su Yang with killing Sea King Durumado and his Servants within one day.
• Durumado dismissed Su Yang as weaker than a Transcendent and fired an energy cannon at him.
• The Underworld Great Array appeared before Su Yang and blocked Durumado's attack, surprising Lee Zevim and Grayfia.
• Durumado unleashed an all-out energy cannon at Su Yang.

Su Yang summoned the Heaven Great Array and used it alongside the Underworld Great Array to battle Durumado and his Servants in the Dimensional Rift. The strain injured Su Yang, while Heaven’s Michael and Diorio prayed for the lord’s protection.

• Su Yang absorbed the Underworld Great Array into his body and used it to block Durumado’s attack, though the array began to crack under the assault.
• Su Yang summoned the Heaven Great Array, shocking Lee Zevim and prompting Grayfia to become resolute.
• Michael told Diorio that the Heaven Great Array’s departure was the lord’s guidance, and the two prayed for protection.
• Su Yang activated Saver-ExBeast and summoned Sacred Beasts that fought Durumado’s Servants while Lee Zevim faced one of them.
• Su Yang coughed up Golden Blood as operating the two great arrays and maintaining his state took a severe toll on his body.

Su Yang used his Original Incarnation and Holy Sword Esther to kill Sea King Durumado, though the transformation severely damaged his origin. After earning the Array Path and reaching the peak of High-class Devil, he inspected his two great arrays.

• Su Yang used the Heaven Great Array and Underworld Great Array to contain Durumado, then sensed that a small enemy had escaped.
• Su Yang invoked his Original Incarnation and transformed into Kurma Incarnation · Original (Azure-Silver Extreme Juggernaut Dragon).
• Su Yang summoned Holy Sword Esther and erased Durumado and part of the Dimensional Rift with a blast of holy light.
• The system rewarded Su Yang with Three Thousand Paths--Array Path for killing Sea King Durumado and his Servants.
• Su Yang revived through the Undying Bird's protection but suffered irreversible damage to his origin, and he noted that he had reached the peak of High-class Devil.