For detailed information about this series, visit the Symphogear Wikia.
Senki Zesshou Symphogear (戦姫絶唱シンフォギア, Senki Zesshō Shinfogia, lit. Superb Song of the Valkyries: Symphogear) is an anime series produced by Encourage Films with production assistance from Satelight and issued by Tokyo MX.
The first season was broadcast from January 6, 2012 until March 30, 2012 with 13 chapters, the second season called "Senki Zesshō Symphogear G" was broadcast from July 4, 2013 and culminated on October 6, 2013 with 13 chapters, the third season called "Senki Zesshou Symphogear GX" was transmitted from July 4 of this year and also with 13 chapters,
A fourth season, Symphogear AXZ, began airing from July 1, 2017, with a fifth season also planned. A manga adaptation was serialized in Kadokawa Shoten's Newtype Ace magazine between November 2011 and April 2013, and a video game is currently in production.
The world is threatened by monsters called Noises, which disintegrate humans by touching them. Two years before the beginning of the series, the members of the duo Zwei Wing, formed by Tsubasa Kazanari and Kanade Amō, fight against the invaders, with the aid of their armor known as Symphogear. In the encounter, Kanade dies protecting Hibiki Tachibana, who develops the same powers by an accident during the battle where he almost died. In this way Hibiki becomes a symphogear user and lends his support to Tsubasa to fight the noises. Throughout the series they will be revealing the mysteries on the noises and the symphogear armors.