Leen is the queen of Cameron Palace, known also as Queen Rin or Queen Eileen, who lived in the ancient era when Sir Aaron was the Aura Guardian. She was a close friend of Aaron and ruled during a time of conflict, when her castle was under siege by overwhelming forces. Despite the danger, Leen chose to remain at the castle rather than flee. When Sir Aaron departed to confront the war, he entrusted his staff to a Pidgeot, which delivered it to Leen. After Aaron’s sacrifice, he used his Aura to save the Tree of Beginning, and Leen witnessed the Tree shining brightly, which ended the war. She then safeguarded Aaron’s staff for over a thousand years, keeping it in the palace as a relic. Leen’s role in the story is primarily that of a historical figure: she represents the royal authority that preserves Aaron’s legacy and passes its symbol to the next generation. Her motivations are rooted in loyalty to her kingdom and her trust in Aaron’s mission. She does not display any supernatural abilities, but her steadfastness and duty are notable. Leen has no direct interaction with Lucario in the present day, but her decision to keep the staff leads to Ash’s later discovery of the sealed Pokémon. Her relationship with Aaron is shown as one of mutual respect and friendship, and her quiet courage sets the stage for the events that unfold many centuries later. Her character lacks significant development on-screen, as she appears only in flashback or as part of the palace’s history, yet she serves as a link between the past and the present.