Momo is a supporting character in the anime Poco's Udon World, which is set in the Kagawa Prefecture. She is a female tanuki, a mythical raccoon dog known for shape-shifting abilities. Momo has brown hair and brown eyes and appears as a teenage girl. She co-owns and works at a mechanic shop alongside her companion Mimi. Momo is playful, mischievous, and kind-hearted, often showing a cheerful and helpful demeanor. Her primary motivation is to live peacefully and assist those in need, which aligns with her role in the story as a friendly local who aids the main characters.

In the series, Momo becomes involved when an alien named Gaogao crash-lands near her shop. Along with Mimi, she repairs Gaogao's spaceship and forms a bond with the alien, whom they affectionately call Gaogao-chan. This subplot highlights her mechanical aptitude and willingness to help strangers. Momo also interacts with the main protagonist Souta Tawara and the young tanuki boy Poco, serving as a source of local knowledge and support. She can speak human language and transform between her tanuki and human forms, though her shape-shifting is less central than Poco's. Her relationship with Mimi is particularly close, as they work and live together, sharing a calm and cooperative dynamic.

Momo does not undergo significant personal development over the course of the anime, but her consistent presence adds warmth and humor to the community setting. Her notable abilities include mechanical repair, shape-shifting, and the ability to communicate with both humans and other supernatural beings. Overall, Momo is a minor but charming figure who embodies the series' themes of kindness, cooperation, and the blending of everyday life with the extraordinary.