Kirito & Co. sind beim Dungeon angekommen und machen sich daran, die Quest zu clearen. Die Mobs sind jedoch nicht ohne und ihnen läuft die Zeit davon. Doch dann ruft auch noch eine holde Maid um Hilfe. Ist das eine Falle? Schaut selbst!
At the entrance to Thrymheim, Yui explains that the quest they were given was created by the Cardinal System's Automatic Quest Generation Function and that if they did not succeed in their quest, a final war event, Ragnarok, would be triggered. Sometime later, at the end of the second floor of Thrymheimr, the group encounters two minotaurs, and they are forced to rely on Sword Skills that could deal elemental damage to them in addition to physical damage, but also leave the player rigid for a few seconds after the skill is used up. With Kirito revealing his new technique of using consecutive Sword Skills with each of his swords to avoid the period of rigidity, they are able to defeat the two minotaurs. Later, after defeating the boss guarding the entrance to the lowest floor of the castle, they encounter an NPC woman trapped in an ice cage along the way. Although the others insist that it is a trap and plan to avoid her, Klein ignores their advice and frees the woman, who was revealed to be Freyja. Instead of running away, Freyja asks to join the group and Kirito reluctantly agrees to the request. After preparing for the final battle by recharging their buffs, the group enters the throne room, where they met the king of the frost giants, Thrym.
La squadra si addentra nel dungeon con lo scopo di sconfiggere il Re dei Giganti che minaccia tutta ALO. Non senza difficoltà riescono a farsi largo fra i nemici e durante il percorso incontrano una fata di nome Freyja imprigionata in una gabbia di ghiaccio, la quale chiede di poterli accompagnare nella loro missione.
女神ウルズから、霜の巨人の王スリュムの討伐と、エクスキャリバー奪還のクエストを与えられたキリトたち。ユイはこのクエストが運営者の意図したものではなく、システムが自動生成したものではないかと推測する。その場合、クエストの行方次第では、《ALO》世界そのものが破壊される可能性すらあると……。そうなる前にクエストを達成するべく、ダンジョン攻略を急ぐキリトたち。その途中、檻の中に閉じ込められ助けを求めていた女性NPC、フレイヤを発見。キリトたちはワナを疑い、先を急ごうとするのだが……。
키리토 일행은 천신만고 끝에 라스트 보스 스림이 있는 4층 앞까지 다다른다. 그런데 4층 도착 직전, 얼음감옥에 갇힌 NPC를 구해주게 되는데... 그 NPC 프레이야에게서는 왠지 수상한 느낌이 들었다.
Kirito e o pessoal têm que derrotar o Rei de Gelo, Thrym, numa missão para recuperar a espada lendária, Excalibur. No entanto, a Yui especula que a missão não foi planejada pelos administradores do jogo, mas sim gerada automaticamente pelo sistema. E se essa hipótese for verdadeira...
Los chicos continúan su recorrido por esta nueva misión y en medio de la misma Yui les dirá algo muy importante. Por otro lado, enfrentarán difíciles oponentes.
桐人一行人從女神兀兒德那邊接到任務，前去討伐霜之巨人的國王索列姆，並奪回斷鋼聖劍。結衣推測這個任務並不是營運公司所策劃，而是系統自動生成的任務。在這種情況下所產生的任務，有可能會因為任務的結果不同，ALO世界甚至有可能因此被毀滅...。桐人等人當然不能對此坐視不理，他們必需在事情變得一發不可收拾之前完成任務，因而急忙前去攻略地宮。路途中，他們遇到一個被關在牢裡向他們求助的女性NPC－－弗蕾亞。桐人他們雖然覺得很可疑，想要趕快往前走，但是......
