Symphogear

During a concert by idol group ZweiWing, an alien force known as the Noise attack the stage. Group members Tsubasa Kazanari and Kanade Amou suppress the attack using their Symphogear armor, but despite their best efforts, innocent bystander Hibiki Tachibana is fatally injured. Distraught and much to Tsubasa's dismay, Kanade sacrifices herself in the process to save Hibiki.Two years later, Hibiki lives on. Tsubasa now fights alone. With the threat of the Noise increasing, Hibiki finds herself encountering the Noise once again but this time she is granted a chance to become attuned with the same Symphogear that Kanade wielded.Symphogear featuring Ayahi Takagaki and Nana Mizuki has one or more episodes streaming with subscription on Crunchyroll, and free on Crunchyroll. It's an action & adventure and animation show with 64 episodes over 5 seasons. Symphogear is still airing with no announced date for the next episode or season. It has a better than average IMDb audience rating of 6.8 (34 votes).