Saarai was a female Chagrian born to a Sith Lord Darth Wyyrlok III and trained by him on Korriban to become the nest Darth Wyyrlok. Still finishing and developing her abilities, she didn't cover herself in the tradition head-to-toe black and red Sith tattoos that was customary for Sith in Darth Krayt's One Sith order.
When her father allegedly "killed" Krayt and had him returned to his stasis chamber on Korriban, Saarai was tasked with guarding the entrance without permitting anyone but her father admittance.
While standing guard, she was met by a recovering Darth Stryfe who demanded to see Krayt after claiming to hear his voice in his head. Saarai, under her father's orders, refused. This lead to a battle of Force powers that ended with Saarai bending Darth Stryfe's body. It was due to Darth Wyyrlok's arrival from the Stasis chamber and direct order that Saarai did not kill the other Sith Lord. Her father then told her to continue to guard the chamber and allowed Darth Stryfe to enter.
Months later, she would be recalled to Coruscant to serve at her father's side as he acted as the New Sith Emperor from behind the ruse that Krayt was just in stasis. When he came out and revealed himself to be alive, however, Saarai and every other Sith felt his call in the dark side. Wyyrlok then openly admitted that he had attempted to kill Krayt in order to take over, and ordered Saarai back to Korriban because she wasn't finished with her training.
At the end of the war, Saarai would follow Darth Nihl's instructions and disperse around the galaxy to infiltrate every and any government she could, in hopes that when the Sith made their return, they would be guaranteed power.