It is revealed that Eir Aoi will perform the theme song of Sword Art Online: Extra Edition called "Niji no Oto" (The Sound of Rainbow).
She also performed the second opening theme of the Sword Art Online TV anime. The upcoming special, which will be streamed online, is a recap episode with some new footage, which is about Yui's desire to see a whale, the girls teaching Suguha how to swim and Kirito meeting someone.
The single for "Niji no Oto" will go on sale in Japan on January 1.
[Source: Anime News Network]
She also performed the second opening theme of the Sword Art Online TV anime. The upcoming special, which will be streamed online, is a recap episode with some new footage, which is about Yui's desire to see a whale, the girls teaching Suguha how to swim and Kirito meeting someone.
The single for "Niji no Oto" will go on sale in Japan on January 1.
[Source: Anime News Network]
