Nazuna Chikarashi is a 28-year-old musician in Bluebird, a folk unit within the Rhapsody music project. Once a renowned guitarist, he transitioned to playing keyboard for Bluebird after a Focal dystonia diagnosis—a neurological condition impairing muscle control—ended his guitar career. This shift led him to manage a small music studio. Despite multiple invitations to join other bands following his departure from guitar performance, he consistently declines. His work with Bluebird involves collaborating with childhood friends Rakki Kokonoe and Souten Natsume, focusing on folk-inspired music within Rhapsody's broader lineup.