The battle against Thrym began with Thrym's attack. Surviving the initial attacks, the fairies and Freyja managed to bring down Thrym's hit points (HP) to two bars. However, after they survived a breath attack, Freyja approached Kirito and Leafa and requested them to find her family treasure, a golden hammer, hidden within the room, as they would not be able to defeat Thrym otherwise. Under Leafa's advice, Kirito used «Lightning Fall» to find the hammer hidden in the piles of treasure. Unexpectedly, once the hammer was returned to Freyja, she transformed into a giant man, the god of thunder, Thor.
With Thrym's attention occupied with Thor, the fairies rushed to help Thor with their own attacks. Once Thrym's HP was nearly depleted, Thor finished Thrym off with his hammer. Before Thor took his leave, he rewarded Klein with a miniature replica of his hammer. At that point, the fairies found out that the quest had not yet been completed, as Excalibur had not been retrieved yet, and Yui informed them that new stairs had appeared behind the throne.
At the room where Excalibur was held, Kirito successfully managed to pull out the sword from its plinth. This caused the roots of the World Tree to grow and Thrymheim to break. As the fairies were falling, Tonky arrived to rescue them, but, as Kirito could not store Excalibur into his inventory and it was too heavy for him to jump on Tonky with, he had to leave the sword behind. But unexpectedly, Sinon used «Retrieve Arrow» to retrieve the lost sword, much to the group's amazement. She then gave it to Kirito, after teasing to always remember her when he used it, much to the others' displeasure. Jötunheimr was then restored to its former glory, with the fighting between the beast evil-god-class monsters and other players coming to a halt. The fairies were then approached by Urðr and her sisters, Verðandi and Skuld, who rewarded the fairies for their help. As they began to leave, Klein promptly asked Skuld for her contact information, and, surprisingly, the goddess showered him with glitter instead.
Back in the real world, the group met up at the Dicey Cafe, where they celebrated the end of the year and the successful completion of the quest. Kazuto (Kirito) brought four cameras and installed them in the four corners of the cafe to create a pseudo-three dimensional environment of the Dicey Cafe that Yui could navigate in her fairy form.
- Adapted from Volume 8, Calibur, Parts 4-6
- The instance where Klein gave Mjölnir to Lisbeth and the talk about melting it into ingots was omitted.
- The revelation that the real mastermind of the frost giants was Archduke Þjazi, instead of Thrym, was omitted.
- In the novel, Kirito stepped on Klein's foot, instead of kicking him in the face.
- The scene where Sinon tried to contain her laughter after teasing Kirito was omitted.
- Thor and the Æsir were not brought up in the conversation with Urðr.
- When Klein was given the a replica of Thor's hammer, it had a long handle. However, the hammer has a short handle in the ending.