Vol. 9War and the Abyss

Seiya led the defense of Under World against Vector and foreign players, then helped open peaceful relations between Under World and the Real World. He returned to Shangri-La Frontier and joined Sun Yue to defeat Abyssal Kukanid, while Lycaon’s curse remained a threat.

  • Seiya rose through the Dark Knight Order and agreed to lead Vector’s invasion force, while Kirito and Eugeo reached Alice, who reacted to Seiya’s name.
  • Seiya took command of a million soldiers marching toward the East Gate and accepted Tiael’s offer to bring the Dark Arts Master Guild to his side.
  • Seiya killed Vector and fought off the invading foreign players until Asuna, Nao, and Shino arrived to aid the Human Realm’s defenders.
  • Seiya changed Under World’s systems to require authorized visitor accounts and allow its residents to enter the Real World.
  • Administrator and Tiael came to the Real World and began cooperating with its authorities after Seiya supported peaceful exchange.
  • Seiya joined Sun Yue on a journey to face Abyssal Kukanid, but Night Raid Lycaon and its Doppelganger attacked their group along the way.
  • Seiya and Sun Yue defeated Night Raid Lycaon, which left Sun Yue’s curse deepened before vanishing.
  • Seiya and his group endured Kukanid’s shifting Holy Grail powers through a three-hour battle and defeated its Imaginary State.
Chapters 804–903 Read from ch. 804

Arc 33The Dark Empire’s March

Seiya returned to the Dark Territory, rose to become a powerful Dark Knight, and faced Vector’s plan to invade the Human Realm. As Kirito and Eugeo sought Alice in the Axiom Church, Seiya accepted command of the invading army and gained Tiael’s support.

  • Seiya reunited with Lybia in Bestaria, joined the Dark Knight Order, and rose to fifth rank after defeating many knights in succession.
  • Seiya returned to Rulid, reassured Selka about Alice, and reunited with Kirito and Eugeo, who agreed to meet again in five years to rescue her.
  • Over the next four years, Seiya became the Dark Knight Order’s vice commander, gained powerful armor and weapons from the White Dragon’s bones, and defeated Fi Za and Tiael in battle.
  • Vector descended into the Dark Empire, and Seiya recovered his Real World memories as the Ten Lords gathered to hear Vector’s demand for submission and his plan to invade the Human Realm for Alice.
  • Kirito and Eugeo entered the Imperial Sword Academy, then violated the Taboo Index to force the Integrity Knights to take them to Alice, who did not recognize them but reacted to Seiya’s name.
  • Seiya agreed to support Vector’s war, took command of a million soldiers marching toward the East Gate, and accepted Tiael’s offer to bring the Dark Arts Master Guild to his side.
Chapters 804–828 Summaries Read

Arc 34The Fall of Vector

Seiya fought to protect Alice and Under World as the Dark Territory invaded, while Administrator and the Human Realm’s defenders faced threats from both Vector and foreign players. After the battle, Seiya changed Under World’s connection to the Real World and left it able to negotiate on more equal terms.

  • Lybia warned Rulid Village of the invasion and led Selka, Casch, and other villagers toward White Dragon Cave as the Dark Territory army burned the village.
  • Seiya explained to Vector that he had halted the killing of humans to protect Alice, while Administrator sent Alice and the Integrity Knights to confront the invading army.
  • Kirito revealed Cardinal’s secrets to Administrator, who cut Under World’s connection to the Real World, then agreed to cooperate with Kirito against the mercenaries threatening it.
  • Bercouli and Seiya clashed on the battlefield, and Alice broke the Right Eye Seal, recovered her memories, and joined Kirito and Eugeo against Administrator’s forces.
  • Seiya defeated Bercouli, then attacked Vector after Administrator’s authority was restricted, but foreign players joined the Dark Territory and overwhelmed the Human Realm army.
  • Seiya killed Vector and took Administrator’s Soul Core, then fought off the players until Asuna, Nao, and Shino arrived as the Super Accounts Stacia, Terraria, and Solus.
  • Asuna and the others restored the Human Realm’s fighters and subdued Chudelkin, while Tiael claimed to be Seiya’s wife and angered Lybia and Alice.
  • Seiya showed Administrator the World Seed and changed Under World’s systems so visitors needed authorized accounts and Under World residents could enter the Real World.
Chapters 829–853 Summaries Read

Arc 35Gods, Worlds, and Wolves

Seiya helped establish peace between Under World and the Real World, then returned to Shangri-La Frontier and joined Sun Yue on a journey to face Abyssal Kukanid. Their path brought them into a fight with Night Raid Lycaon and its Doppelganger.

  • Seiya appointed Administrator and Tiael to govern Under World, and Administrator later killed Emperor Calus North when he claimed Lybia and threatened the other emperors.
  • Administrator and Tiael arrived in the Real World with an Under World delegation, rejected the authorities’ attempts to control them, and agreed to cooperate after Seiya supported peaceful exchange.
  • Seiya returned to Under World with Kirito and their friends, then came back to the Real World, where RATH found that their accounts and the Super Accounts could not be controlled from outside.
  • Administrator recalled a dream in which Seiya’s absence led to her defeat, tortured Chudelkin, and decided to use his soul to create a Sword Giant.
  • Seiya and his friends met Administrator’s delegation in Tokyo, and the two worlds began negotiating trade and cooperation while the visitors settled into life in the Real World.
  • Seiya returned to Shangri-La Frontier and defeated Sun Yue in a spar, then agreed to join him on a trip to Fevtiha to encounter Abyssal Kukanid.
  • As Seiya’s group crossed a monster zone, Utopia Company sent Night Raid Lycaon to intercept them, and Lycaon appeared under the moon as they traveled through the night.
  • Seiya and Sun Yue charged Night Raid Lycaon, but a Doppelganger emerged and attacked the group, leaving Seka-0 battered and Birak trapped as Emil tried to restrain it.
Chapters 854–878 Summaries Read

Arc 36The Abyssal Kukanid Raid

Seiya and Sun Yue followed the Ghost Ship into Laleias, where they uncovered Abyssal Kukanid’s delusion and challenged the monster at full strength. After a grueling raid against its shifting Holy Grail powers, they defeated its Imaginary State.

  • Sun Yue and Seiya defeated Night Raid Lycaon, but Lycaon left Sun Yue with a deepened curse before vanishing.
  • Seiya, Sun Yue, and Panshilgon joined Sukuwood’s Ghost Ship voyage, survived the Merman Zombies, and entered the abyss through the Abyssal Maw.
  • In Laleias, Seiya and the others fought a Giant Oarfish, learned that the city and its monsters reset at night, and investigated four powerful Generals.
  • Seiya’s group discovered Abyssal Kukanid in the castle, then used the Reversal Keystone at Past Glory to dispel its Delusional State and reveal its Fantasy State.
  • The group damaged Kukanid’s tentacles until it transformed into its Imaginary State, then tested its Holy Grails to learn how they changed its defenses.
  • Kukanid’s Holy Grails reversed abilities, genders, attributes, and damage effects, nearly wiping out Seiya’s group more than once.
  • After three hours of combat and rotating short rests, Seiya’s group defeated Kukanid’s Imaginary State.
Chapters 879–903 Summaries Read
Volume 9 of 10