
Quick answer — Eir Aoi worked on Kill la Kill: GOODBYE AGAIN (Theme Song Performance), The Heroic Legend of Arslan: Dust Storm Dance (Theme Song Performance), Sword Art Online Alternative: Gun Gale Online (Theme Song Performance) and 3 more anime.
Eir Aoi worked on Kill la Kill: GOODBYE AGAIN (Theme Song Performance), The Heroic Legend of Arslan: Dust Storm Dance (Theme Song Performance), Sword Art Online Alternative: Gun Gale Online (Theme Song Performance), Sword Art Online II (Theme Song Performance), ALDNOAH.ZERO Season 2 (Theme Song Performance), BACK ARROW (Theme Song Performance).