It is about Ronja, the only child of a bandit chief, who grows up among a clan of robbers living in a castle in the woodlands of early-Medieval Scandinavia.

Ronja's life begins to change, however, when she happens upon a boy her own age named Birk, who turns out to be the son of the rival clan chief.

The anime is a cel-shaded television series, based on the novel Ronia, the Robber's Daughter (Ronja Rövardotter) written by Astrid Lindgren.

[5] Produced by Polygon Pictures, Studio Ghibli, NHK Enterprises and Dwango, the series is directed and storyboarded by Gorō Miyazaki,[6] with Hiroyuki Kawasaki handling series composition and writing the scripts, Katsuya Kondō designing the characters, Toshio Suzuki providing the title logo and Satoshi Takebe composing the music.

[7] Kazuyoshi Saito wrote, produced and performed all the instruments on "Player" for Mari Natsuki to sing as the ending theme song.