Ronja, the Robber's Daughter

Ronja, the Robber's Daughter (山賊の娘ローニャ, Sanzoku no Musume Rōnya) is a computer-animated cel shaded anime series, based on the book Ronia, the Robber's Daughter (Ronja Rövardotter) written by Astrid Lindgren. The series is directed by Gorō Miyazaki and animated by Polygon Pictures, and co-produced by Studio Ghibli.

Plot
The story revolves around Ronia, the only daughter of Mattis, the chief of a tribe of bandits who live in a large castle in a forest. Ronia studies the ways of the mysterious creatures who live in the forest.