Corticarte Apa Lagranges is a central character in the anime series Shinkyoku Soukai Polyphonica. She is a powerful spirit known as a 'Shinkyoku' who forms a contract with the protagonist, Phoron. Often taking the appearance of a young girl with striking red hair, Corticarte is both whimsical and temperamental. Her personality is complex, combining mischievousness with a desire to protect those she cares about. Throughout the series, she helps Phoron in various challenges, using her abilities to support him in his role as a Dantist, someone who plays magical music to communicate with and control spirits.