Githany was born on an unidentified world somewhere between two and three decades before the Russan campaign, and her parents gave her to the Jedi Order as a toddler. She trained under the Cathar Jedi Master Handa alongside a fellow Padawan named Kiel Charny this being an era when multiple apprentices were still permissible.
During her training, the young Padawan lost touch with the Force, unable to cope with something so vast, leading to her psyche creating walls to protect herself from such power. Only through the patient help of her Jedi Master was she able to break down these walls and continue her training. Later on, as she approached adulthood, Githany began to fall in love with Charny. Their Master discovered the affair and was enraged. The Cathar demanded that the two refrain from any further relationship. While Kiel acquiesced to his Master's demands, Githany refused and fled the Jedi, eventually joining the Sith. Charny, forced to choose between his love and the Jedi, chose the Jedi, heeding the advice of his close friend, Valenthyne Farfalla.
During the early months of the Russan campaign, Githany turned to the dark side, and joined the Brotherhood of Darkness, though for a while she kept her treachery secret. Upon her defection, she met with the Sith Lord Kaan and the other Dark Lords in their camp, and turned over valuable strategic information pertaining to the Jedi to the Brotherhood, notaby Dark Hoth's battle plans, which she had obtained due to her relationship with Charny, one of Hoth's most prominent generals. After the Sith were satisfied with what she had to offer, Githany was then sent to the Sith Academy on Korriban where she would begin her training as a Sith adept.
There, she quickly made allies with another student named Bane, and used him in her scheme to defeat the top student at the school, Sirak. Seeing potential in him, Githany secretly began to train Bane, even as every other Sith Master refused to do so, teaching him the art of force lightning. It was during this secret training that Githany began to develop feelings for Bane, even sharing a kiss with him. Bane eventually fought Sirak and won, but to Githany's dismay, he allowed the Zabrak to live. Feeling that Bane had failed to live up to her expectations, Githany allied herself with Sirak. Along with fellow students Yevra and Llokay, Githany and Sirak ambushed Bane when he returned from the Valley of the Dark Lords. During the ensuing fight, Githany once again changed her alliance, killing Yevra and Llokay. Bane then killed Sirak. Though she would eventually betray Bane on Ruusan, Githany once again allied herself with him.
With the need for more Sith on Ruusan to fight against the Army of Light, Lord Kaan called for all students on Korriban to be made into Dark Lords, Githany among them. On Ruusan, Githany was given the task of assasinating Darth Bane, meet up with him on the world of Ambria where she planned to poison him with synox, as well as with the application of Rock worrt venom to her lips. Bane was given three lethal doses of this poison in the guise of a kiss, yet he nonetheless survived by going to a healer on the planet. The healer, knowing Bane was of the Dark side, refused, but then accepted when Bane threatened his daughter
On Ruusan, Bane returned, interrupting a meeting of Kaan's inner circle. Despite her surprise at his survival, Githany joined the other Lords in welcoming Bane back into the fold. Feigning forgiveness of Kaan, Bane rejoined the Brotherhood and participated in the council of war, assisting in the development of a plan to flush the Jedi out with their combined dark side powers.
While their minions attacked the Jedi in a diversionary feint, Githany, Bane, Kaan, and the other Dark Lords gathered on a high precipice, where Bane directed the Sith in a powerful ritual. With their combined Force powers, a great wave of destruction thundered across the surface of Ruusan, scorching the once lush forests and decimating Republic and Jedi forces by the thousands. After the success of this powerful ritual, Lord Kaan led his forces into combat with the Jedi, and Githany followed.
During the sixth battle of Russan, Kaan, Githany and other Dark Lords launched a surprise attack on the vanguard of the Jedi forces, led by Githany's former lover, Kiel Charny. The Jedi were still recovering from both the diversionary attack and the great Force wave, and thus had little time to prepare an effective defense. The Sith, mounted on apeeders, capitalized on their advantage and ambushed the Jedi camp.
Githany did not kill Charny on the first pass, despite his vulnerable position. When Kaan accused her of showing mercy, Githany assured her leader that she was merely "toying" with Charny. The arrival of the forces of Valenthyne Farfalla, however, changed matters. Farfalla's assault forced the Sith out of the air, and Githany was cut off from the Sith forces, stranded on the surface. Not to be dismayed, Githany took the fight to Charny himself, challenging the Jedi General to a duel. The pair met in combat and with the help of Darovit, Githany was able to kill Charny. She then took Darovit as her student, and the pair departed, planning to rendezvous back with Kaan at the Sith camp.
Once they arrived, Githany learned from Kopecz that Kaan had discovered a weapon to use against the oncoming Jedi forces. The "idea" turned out to be an ancient Sith ritual known as the thought bomb; this was, essentially, a massively-destructive utilization of the dark side, which focused the collective power of those who would activate it, targeting force-sensitives and vaporizing clothing, flesh, bone, and even stone within the blast radius. Githany, her earlier respect for Kaan rapidly waning, dismissed their leader as a "weak, conceited idiot."
Realizing that the battle was lost, Kaan and the remaining Dark Lords retreated into a cave system, where under Kaan, they would attempt to rid the world of their foes in one fell swoop. The thought bomb was about to be unleashed; the remaining Lords gathered in a circle and began the ritual to release it's devastating power. Githany, however, managed to summon enough will to break free of Kaan's ritual and escape. She now realized that after seeing the madness in Kaan's desperate initiative, Bane had been correct after all. She took Darovit with her and quickly fled the scene.
Escaping through the rear entrance to the caves, they came upon a Republic infiltration squad. One of the squad's members was Hardin, Darovit's cousin, now fully inducted as a Jedi. Ordering Darovit to finish off Hardin, Githany waited outside, preparing the speeders for their departure. When Darovit, despite all his deeds, proved unable to kill Hardin, Githany brandished her lightwhip and sheared off Hardin's leg. As the power of the thought bomb began to resonate over Ruusan, Githany grew impatient with Darovit, who was lingering in the cave with a defeated Hardin. Unable to wait any longer, she fled without her student.
Githany's departure came too late. She was caught in the waves of dark side energy let loose from the bomb, which caused her body to be sucked of life and reduced to ash.