The third season of Senki Zesshou Symphogear. 
 
Following the events of Senki Zesshou Symphogear G, Hibiki Tachibana, Tsubasa Kazanari, and Chris Yukine continue to operate under the command of Genjuurou Kazanari. Meanwhile, Maria Cadenzavna Eve, Kirika Akatsuki, and Shirabe Tsukuyomi are taken into protective custody. With peace restored, everyone returns to their daily lives; however, the appearance of the alchemist Carol Malus Dienheim and her subordinates—the "Autoscorers"—threatens to draw everyone back into a conflict. 
 
Armed with a strange and magical power, Carol wishes to initiate the apocalypse and bring destruction to the world... and she is willing to sacrifice everything to do so. Against this mysterious new foe, the six Symphogear wielders must rise to the challenge in order to protect what they hold dear. However, will Carol and her Autoscorers prove to be too much to handle in this fight to protect the fate of the world? 
 
(Source: MAL Rewrite)

The second season of Senki Zesshou Symphogear. 
 
The sky is waiting. 
 
With their normal lives secured, the Symphogear wielders join a Japanese-American research initiative. Each, living their own lives, has been given a single order: protect Sacrist S. As a completed relic, it is of upmost importance to both Irregular Threat Response and the American Federal Institute of Sacrists, and now, the wielders must escort it to the American military base in Iwakuni. The operation should have gone smoothly with both sides now cooperating. But a dark storm during the night hid a new threat until it was almost too late: the Noise. And with the doors of Babylon's treasury thrown wide, they have only increased in number. But then, amidst the rising dissonance of a destruction brought on by the Noise's alien anatomy, a girl's voice raised in song thunders out, as though piercing through them. "This is my Gungnir!" The cry of the first known human to fuse with a relic, Hibiki Tachibana. 
 
The Noise flooding in, their movements orchestrated. The specter of the one pulling their strings looming above them. And then, the songs. The curtain rises on a new clash between mere melodies, and songs through which these girls' blood flows.
 
(Source: Discotek Media)

Shorts released with the Blu-ray and DVD releases of Senki Zesshou Symphogear GX.

The fourth season of Senki Zesshou Symphogear. 
 
Hibiki Tachibana has defeated many powerful enemies, saved countless innocent lives, and escaped from numerous desperate situations, but she is currently finding herself unable to escape from her most desperate situation yet—summer homework! Although her high school life is relatively unremarkable, her career as a member of the military organization S.O.N.G. is anything but. Using powerful, ancient armor known as Symphogear, Hibiki and her teammates work with the United Nations to deal with international disputes and disasters. 
 
During a mission briefing at headquarters, Hibiki is made aware of a mysterious organization known as the Bavarian Illuminati, who has been responsible for several major disasters in the past and currently operate in the war-torn country Val Verde. Together, Hibiki and her team infiltrate one of the Bavarian Illuminati's manufacturing plants and free hundreds of slaves. Exposed, alchemists Saint-Germain, Cagliostro, and Prelati reveal themselves as the organization's top brass, and—using alchemical powers—declare a global revolution while sacrificing thousands of lives. Faced with yet another threat to the world's survival, Hibiki and her allies must confront the Bavarian Illuminati in their most difficult and destructive battle yet. 
 
(Source: MAL Rewrite)

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