Hibiki Tachibana has vanquished countless formidable foes, rescued innumerable innocent souls, and escaped from a multitude of dire predicaments, yet she now finds herself trapped by the most daunting challenge of all—summer assignments! While her ordinary high‑school routine remains modest, her role within the armed forces unit S.O.N.G. is anything but ordinary. Armed with the ancient, formidable Symphogear armor, Hibiki and her comrades collaborate with the United Nations to address global conflicts and calamities.
During a briefing at base, Hibiki learns of a clandestine group called the Bavarian Illuminati, which has orchestrated several major catastrophes and presently operates in the war‑ridden nation of Val Verde. Together, she and her squad infiltrate an Illuminati production facility, liberating hundreds of enslaved workers. When exposed, the alchemists Saint‑Germain, Cagliostro, and Prelati emerge as the organization"s leaders; wielding alchemical might, they ignite a worldwide uprising at the cost of thousands of lives. Confronted with another existential threat, Hibiki and her allies must face the Bavarian Illuminati in their most perilous and devastating clash yet.
