The Azjol-anak are a group of the few remaining nerubians that are still living. They reside within Azjol-Nerub and are strongly opposed to Anub'arak's undead nerubians, the Anub'ar. They ordered to kill Anub'arak for his crimes. After his death, it is revealed that the Azjol-anak possess an enormous secret stash of their own eggs hidden safely so that after the wipeout of the Scourge from Azjol-Nerub, they can begin repopulating their people. Upon expelling the faceless ones from Ahn'kahet, they work to hatch a giant cocoon.
The Azjol-anak's work continued long after the defeat of the Lich King, as an adventurer would later deliver [Vorus'arak's Carapace] to Kilix the Unraveler; remaining friendly to those who had aided them in reclaiming their home. They thanked the adventurer for claiming a piece of their history, apparently having no qualms with them murdering one of the last nerubian spiderlords and reward them with Azerite.
This section contains information from the World of Warcraft Trading Card Game and is considered non-canon.