Mina is a supporting character who appears in the anime film Eiga Doraemon: Nobita no Chikyū Symphony. She is a world-famous singer who has built a successful career overseas, primarily based in Germany, and is nineteen years old at the time of the story. She is currently undertaking her first world tour, which brings her to Japan. Mina possesses a warm and generous personality. When she learns that the mysterious girl Mikka is in need of a special flute that holds great importance for her home planet, Mina willingly lends it, explaining that the object is a charm passed down from her own grandmother. This act of kindness proves crucial to the story's progression.

Mina's motivation is not driven by any personal quest but by a genuine willingness to help a stranger. Her role in the narrative is that of a key figure who connects the past to the present. It is revealed that Mina is a descendant of Mikka's twin sister, who was sent to Earth on a flute forty thousand years ago in the wake of the devastation of the planet Mushka. The whistle that Mina possesses is the very instrument needed to restore the Farre Hall and combat the threat of Noise. The connection is first noticed by Suneo, who observes that one of Mina's songs sounds remarkably similar to a Mushka lullaby. Her identity as the descendant of Mikka's sister makes her an essential link in the chain of events that allows the protagonists to complete their mission. In terms of development, Mina herself does not undergo a personal arc within the film's runtime, but her existence and her willingness to part with a cherished heirloom provide the resolution that the main characters need. Her notable ability is her exceptional singing talent, which has earned her international fame and is indirectly tied to the musical heritage of the lost planet Mushka.