A descendent of the Auslese family, inheritors of the Sept-Terrion of Space, Klaudia is the heir to the throne of Liberl.
During her time as a student attending Jenis Royal Academy, she hid her true identity. It was during this time she met Estelle and Joshua, and ended up joining them to help resolve the incidents in Liberl.
Thanks to her travels, she realized the path she needed to take and cast away the doubts she had over taking up the throne.
When she finds out war is imminent between Erebonia and Calvard, she begins to take action as Crown Princess of Liberl.