Daleen, a youthful Human female, was thought to be a Princess from a royal lineage. She enrolled as a student at the Orsis Academy as the Galactic Republic neared its end. During 39 BBY, her attendance record at the academy was worse than that of Maul, another student. While her combat abilities were not great, Trezza, the academy's headmaster, believed she possessed the potential to become a capable stealth operative. During a visit to Maul alongside Kilindi Matako, Daleen maneuvered the Dathomirian Zabrak close enough to inhale her intoxicating scent. As he departed, she stroked the back of his head, promising a surprise upon his return. Unfortunately, when Maul came back, he was under orders from Darth Sidious to eliminate everyone at the academy, and Daleen was killed before she had the chance to unveil the surprise.