Ep. 17: The group defeats Thrym with Freyja's help and retrieves Excaliber from Þrymheimr.

Thrym battles the group until Freyja intervenes, freezing them with ice breath before Thrym is distracted by Sinon. Kirito retrieves a golden hammer, allowing Freyja to transform into Thor, who joins the fight and defeats Thrym. Thor rewards Klein with Mjölnir, though he is dissatisfied, and a secret staircase reveals Excaliber at the bottom of Þrymheimr. Kirito pulls the sword from ice, causing the area to collapse. Tonkii saves them from the chasm, and Kirito discards the heavy sword, but Sinon retrieves it with a magic arrow. She returns it to Kirito with a condition that causes jealousy among the others. As the chasm floods and new trees grow, Urðr and her sisters thank the group for saving Jötunheimr, with Urðr gifting Excaliber to Kirito. Later, Kazuto, Suguha, and Shino test a device for Yui before celebrating the quest's end with lunch.

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