Oola first appears in Rani in the Mermaid Lagoon, she saves Rani from the rocks where Havendish Stream and Mermaid Lagoon meet. Rani first mistaked her for Soop at first, but soon realizes that it's not her. She is nice to Rani at first, but when Rani goes to retrieve her ring Oola and the other mermaids abandoned her for Peter Pan. Rani gives her the ring, but just throws it away when Voona tells her it clashes with a her hair. They all leave Rani alone again, and don't even care when Rani tells them goodbye. In Iridessa, Lost at Sea, she is seen with Numi sitting on a rock when they see Iridessa and Tink. She makes a comment about once having a fairy with no wings, talking about Rani of course.