http://www.animelyrics.com/anime/is/superstream.htm

This complete version, sung by all 5 lead female seiyuus, is actually the 5th ED (that has yet to actually play in an episode that has aired), and not the 4th, as each subsequent ED adds another singer, starting with 1 for the first. But the lyrics for all of the versions are the same, so even if it's credited with all 5 seiyuus, I think it's better to just list it simply as "Ending theme" under "Description:".

Also, the composition and arrangement is by "Yamaguchi Akihiko", and not "Kawaguchi Akihiko"