Oba is an elderly woman who appears in the anime adaptation of Mori no Senshi Bonolon. She is a character created specifically for the anime version, meaning she does not come from the original picture book stories on which the series is based. Her main function in the anime is to serve as the narrator of the story. As the narrator, she tells the story to the audience and guides viewers through the events of each episode. Her narration frames the tales and gives the series the feel of a story being recounted aloud by an older voice. Because her part is tied to storytelling, Oba is a framing presence who accompanies the narrative rather than a participant in the adventures that unfold.