If you ever seen the anime Kill la Kill or Sword Art Online season 2, you might have heard her sing in the first opening songs. Recently announced in her site and Anime News Network, the singer Eir Aoi comes out of hiatus. She is planning to come back and perform in the spring.
If you did not know, Eir Aoi took an indefinite hiatus in November 2016 due to poor health. She actually announced on August 2016 that she would cancel her plans in special activities. Until then, she has taken the time to heal and rest herself. Now in 2018, she is back and ready to do more songs.