Kazanari Tsubasa and Amou Kanade formed the legendary idol unit known as Zwei Wing. They use their songs to power ancient relics used as Symphogear to fight Noise - creatures of unknown origin against which conventional weapons do not work. Humans are familiar with the existence of the Noise, but knowledge of the Symphogear is kept strictly confidential. One day the Noise attack one of Zwei Wing's concerts.
Tachibana Arisu and several of her female colleagues are embarking on careers as professional idols. Their dream has just come true. They have been assigned a Producer to take care of them and take care of promotions. The girls' excitement leads them to heavily idealize his image in anticipation of their first meeting.
Sixteen-year-old Hoshino Ai is a talented and beautiful idol adored by her fans. She moves the hearts of large masses. She is the epitome of an innocent young girl possessing a personality that attracts like a magnet. Amemiya Gorou is a doctor at a hospital in the province and a big fan of Ai. So when the pregnant idol shows up at his hospital, he gets quite shocked.
Nabatame Haru, Seibu Rio and Tamaki Kyouka form an idol unit called TINGS. Unfortunately, despite almost a year of activity, they are unable to gather crowds. The director of the agency they belong to, Hinase Yuuki, gives them an ultimatum - if they can't fill Nakano Sun Plaza in its entirety, their unit will be disbanded.
The year 2032 was a turning point for the idol world. The slow extinction of this subculture was initiated by the breakup of the legendary 7th Sisters unit. The media began to rally to the end of the idol era, and large corporations took it upon themselves to purchase buildings and land belonging to various agencies.
Studio 765 Production gromadzi trzynaście utalentowanych młodych dziewczyn o całkowicie odmiennych charakterach, które pragną zostać idolkami. Właściciel stawia sobie za cel uczynienie z nich rozpoznawalnych w całym kraju gwiazd. Zatrudnia dobrze rokującego menadżera mającego za zadanie odpowiednie poprowadzenie ścieżek rozwoju swych przyszłych podopiecznych. Początki nie są łatwe i przez większość czasu grupa idolek nie zajmuje się niczym innym niż treningi.