By some miracle, Aki Toyosaki, who voiced the anime’s protagonist Yui Hirasawa, posted a video of a cover version of the song on her unit sphere’s official YouTube channel today.
And now, as a result of various things that have happened, the voice actress of the protagonist Yui Hirasawa, Aki Toyosaki-san herself has sung the song…
Of course, it was a song that did not exist in the anime, and was not an official song of the franchise at all.