O'Harlan, an aspiring female Imperial cadet hailing from Lothal's Academy for Young Imperials, found herself a member of Unit Esk, which operated within squad LRC077. Despite successfully navigating the initial orientation phase at the Academy, O'Harlan subsequently departed from the program, the cause of which is not known. Her position was then filled by a different cadet, who was elevated from one of Lothal's other academies located in the region.