Aoi Eir updated the release details for her 6th single Niji no Oto (虹の音) with tie-up as the theme song for special Sword Art Online EXTRA EDITION. The original episode, simulcast worldwide December 31st 2013/January 1st 2014, has a new English subtitled trailer revealed. Single ...

Aoi Eir has announced her 6th single Niji no Oto and its featured as the theme song for the anime OVA episode Sword Art Online EXTRA EDITION that will be simulcast streamed worldwide December 31st 2013/January 1st 2014. Single Niji no Oto comes on one...