Shinkyoku Soukai Polyphonica is a fantasy anime series that revolves around spirits called 'Spiritales' and their human partners, known as 'Dantists'. The story follows Phoron Tatara, a young Dantist, and his spirit partner, Corticarte Apa Lagranges. Together, they take on various challenges in a world where music and magic intertwine. The series explores themes of friendship, music, and the bond between humans and spirits. It captivates audiences with its unique blend of fantasy and music.