Urðr has a beautiful face with a serene expression and ladylike elegance. She is over 3 meters tall, has turquoise pupils and wears a light-green long dress. She also has a flowing voice, tinged with a solemn effect. The skirt of her wavy fin-shaped blond hair, flowing from the back to the feet, is like tapered, divided and undulated tentacles. Her limbs are covered by pearly sparkling scales.
Urðr was created by the Cardinal System’s Automated Quest Generation function, which based the character on a myth from Norse mythology. Unlike most quest NPCs, Urðr's core programming is connected to the language engine module, therefore, instead of having a fixed response routine, she has a certain level of Artificial Intelligence and is thus capable of much more flexibility in her dialogue routines as well as sounding far more realistic than a regular NPC.
Urðr appeared to Kirito's party after Þhrym enlisted the help of the players of ALfheim Online to massacre the Beast-type Evil Gods roaming Jötunheimr. She told them the story of how Jötunheimr was turned from a beautiful and tranquil world full of greenery into a barren wasteland of frost after Thrym threw the Holy Sword Excalibur into Urðr's Spring, cutting off the blessings of the World Tree. She then explained that Thrym wanted to massacre all the Beast-type Evil Gods within Jötunheimr to render her powerless and thus, no longer restricted by Urðr's power, he would be able to invade Alfheim. Then, saying that Thrym had left his castle barely defended, she asked the fairies to invade Thrymheim and remove Excalibur from the Plinth of Thrymheim before the last Beast-type Evil God was killed to stop Thrym’s plan. She also gave them a medallion that kept track of how many Beast-type Evil Gods were still alive, before she departed.
About two hours later, after the fairies were successful in their quest to remove Excalibur from its pedestal, Urðr reappeared before the fairies with her two sisters, Verðandi and Skuld, and all 3 of them thanked the fairies and rewarded them with a waterfall of items, nearly completely filling up the inventory of the party. Urðr herself rewarded the fairies with the Holy Sword Excalibur, before she disappeared.
Character designs for Urðr in a special booklet.
In the original myth, Urðr was actually 1 of the 3 Norns, rulers of the destiny of men and gods, instead of being one of the rulers of a tribe of giants and beasts.