Olivia, whose surname appears in different romanizations such as Lindegard, Lindegald, and Lindegold, is the central character of the anime Slave Princess Olivia. She is a princess of the kingdom of Lindegard who also serves as a knight, placing her in the role of a princess knight. She is an adult woman with very long green hair and purple eyes.

Olivia is portrayed as noble, courageous, and proud. She carries the dignity expected of a royal who is also a warrior, and that pride becomes a defining part of her identity. When her homeland is invaded and subjugated by enemy forces under the command of the officer Cecil, she is captured with the help of a mysterious woman named Rune. To spare her nation from destruction, Olivia is forced to become a slave, and she is subjected to repeated degrading treatment by her captors.

Her primary motivation is the survival of her country, and she endures her situation for that purpose. Even as her body is controlled and she is trained as a sexual slave, her inner will remains difficult to overcome. Cecil is able to take her physically, but he cannot easily break her spirit, and the story centers on the ongoing struggle between her outward submission and her inner resistance.

The key relationship in her story is with Cecil, her captor, who gradually comes to feel something resembling love for her even as he dominates her. This emotional entanglement complicates the power between them. Other figures in her orbit include Rune, who assists in her capture, and the women Teresa Keltula and Laura Elfinrine, though little detail is provided about those connections. As a knight, Olivia has combat training and is accustomed to hardship, but her most notable qualities in the story are her endurance and her refusal to surrender her sense of self. Her development lies in the tension between the degradation imposed on her and the unbroken will she maintains throughout.