Aurica Nestmile is a central character in the game and anime adaptation of Ar Tonelico: Melody of Elemia. She is a Reyvateil, a race of song magic users, and joins the protagonist, Lyner Barsett, on his journey to save the world of Sol Ciel. Aurica is initially shy, insecure, and struggles with low self-esteem due to her troubled past, but she gradually finds her confidence and strength through her relationships and adventures. Her character arc centers on growth, acceptance, and the power of music.