She appears again, now promoted to captain, during A Void Dance. Her main role is to support the player during the quest, usually by guiding him/her in between various parts, and, during the end, helping to combat the Black Knight Guardian. She also gives a bit of insight into the Void Knight's past, and even goes so far as to recommend Jessika to join as well.
During the events of The Void Stares Back, Korasi acts as a representative of the Void Knights in the alliance of the knight forces. Before entering the portal to the Void, she will give the player her sword. After the unique pest conquest game, she or Jessika must be sacrificed to catalyse the summoning of the Pest Queen. Whichever one the player chooses to save will explode the foodgoo in order to close the Void Portal, while the other will die immediately at the hands of Wizard Grayzag. If Korasi is saved, she returns to the Void Knights' Outpost after the quest. Speaking with Tyr informs the player that she is most likely on the battlefield, as part of her vengeance against the Pests.
Korasi also features in Nomad's Elegy, depending on the player's choice in the Void Stares Back. If the player choose to let her die, then she is one of the four adventurers aiding Death, Icthlarin, and the player. However, if the player choose to let her live and let Jessika die, then she is a memory of Jessika's encountered in limbo.
During the non-canoncial Gower Quest, Korasi will appear in Behind the Scenes if she was killed in The Void Stares Back (if she survives then Jessika appears instead). If Nomad's Elegy is completed, she will explain that she is the NPC of the "living" version of Korasi, as opposed to the one encountered in the Underworld.
Her name was revealed in a piece of concept art found in the "Into the Void" Developers' Blogs detailing the upcoming series.
She was originally going to be one of the 8 Signature Heroes, but then Jagex said that she was "too connected into the quest line" and it was "too late" to make her into one.
Cut content during Nomad's Elegy revealed that she had a relationship with Jessika. If she was killed, she was supposed to have written a letter to Jessika. This was removed due to time constraints.