Iliana Ghemor is the daughter of Legate Tekeny Ghemor, an Obsidian Order operative surgically altered to infiltrate the Bajoran resistance, whose identity is foisted on Kira Nerys in Second Skin.
Iliana is at the centre of the episode Second Skin, although she herself is seen only in a recording. The daughter of Tekeny Ghemor, a member of the Central Command, she joined the Obsidian Order against her father's wishes and volunteered for a deep-cover mission on Bajor about ten years before the episode. She was given the appearance of a Bajoran and implanted memories, and was never heard from again.
The Order's Corbin Entek abducts Kira, has her altered to look Cardassian and tells her that she is Iliana, her Bajoran life being only a cover. The real purpose is to expose Ghemor as a dissident when he tries to save the woman he takes for his daughter.
Iliana's true fate is not revealed on screen. Ghemor comes to regard Kira as the nearest thing to a daughter he has left.