Symphogear G - Superb Song of the Valkyries: Symphogear

After the Luna incident, Tsubasa Kazanari and foreign idol Maria Cadenzavna Eve perform a joint duet together. Much to everyone's surprise however, Maria makes a declaration of war against the world with her own dark Symphogear. Hibiki, Tsubasa and Chris are tasked with stopping Maria, Kirika and Shirabe.