Inka is the kind piano teacher of both Oobi and Angus. She encourages her students to work hard and do well. She often reminds Oobi to "shake" out his nervousness before performing. Inka is very fond of France and its culture, especially Parisian cafés. Grampu and Inka are in a relationship and often go out on dates with each other.
Inka has fair skin, pink fingernails and yellow-green eyes. Her hair is purple, and she almost always wears jewelry. In her first appearance, Inka wears a green scarf. In the majority of her later appearances, she wears a black and white dress.
Inka is featured in eight episodes of Oobi: