Rune is 24 years old. She's pale, with blue eyes and black hair. Rune is transgender, though this fact is kept hidden from the public. She struggles greatly with needing to hide who she really is, and can only be her true self around her personal knight and confidant—the only person who truly knows Rune inside and out.

Publicly, Rune is cold and indifferent, a result of having to hide her true self from the public. Privately, she's sweet, soft spoken, gentle, and a little self-conscious.