Conithr was a Jedi Master who resided at the Coronet City temple throughout the High Republic Era. She aided Jedi Initiate Ruu in altering his name within the Jedi archives, and subsequently, she became his Master. Following the destruction of Starlight Beacon, Conithr declined to return to Coruscant, opting instead to protect Corellia from the threat of the Nihil. During a confrontation with the Nihil, she gave her life to protect her Padawan, Ruu.
Alyssa Wong's young-adult short story, "Rogue Element," featured Conithr in a flashback sequence. This story was published as part of the Star Wars: The High Republic project in the Barnes & Noble exclusive version of the 2023 anthology, The High Republic: Tales of Light and Life.