Two Idols, Tsubasa Kazanari and Kanade Amo, collectively known as Zwei Wing, battle agianst known as Noise using armor known as Symphogear, which uses the power of music to counteract the Noise's destructive capability. However, Kanade sacrifices herself to protect a girl named Hibiki Tachibana, who ends up in a piece of Kanade's Symphogear relic, Gugnir, embedded in her chest. Two years later, awakens the power of the Gungnir, embedded in her chest. Hibiki awakens the power of the Gungnir relic inside her body, gaining the same Symphogear armor that Kanade had. Using the power of song, Hibiki and her fellow Symphogear wielders must fight to protect the innocent and defeat those who would use the Noise for evil.
