Ouri is a main character in the fantasy adventure Gestalt. She is a young girl from the south who appears before Father Olivier as he begins his journey toward the forbidden island of G. She is initially presented as mute and seemingly simple, unable to speak, and she is given to Olivier as a gift. In some retellings of the story, she claims to be a sorceress from G's island who is returning home, and since the two travelers are heading toward the same destination, she decides to accompany him.

Despite her unassuming and helpless appearance, Ouri hides considerable power. When the dark elf Suzu, hired to track down Olivier, catches up to the pair, Ouri reveals herself to be a powerful sorceress and defends Olivier, easily disposing of Suzu so that they can continue on their way. Over the course of the story, she demonstrates hidden magical abilities and reveals another side of her personality beneath her quiet exterior.

Her primary motivation is her desire to return to the island of G, which aligns with Olivier's own quest to uncover the truth about the island and the forbidden god associated with it. Her most important relationship is with Olivier, whom she travels with and protects during their journey. Her role in the story is that of a companion and guardian, using her magic to shield Olivier from the monsters, hostile magic users, and other dangers that stand in their way. Her development centers on the gradual revelation of her true nature, transforming from a silent and seemingly foolish girl into a capable and formidable sorceress.

In terms of abilities, Ouri is highly adept in magic and possesses enough skill as a sorceress to overwhelm an experienced dark elf such as Suzu and to face the many perils of the island of G.