In commemoration of the release of the new rhythm game Love Live! School Idol Festival All Stars, the Love Live! franchise’s official YouTube channel has started posting full-length music videos of its numbering singles one by one daily.
The smartphone game Love Live! School Idol Festival All Stars was released on September 26, 2019 in Japan, and has attracted three million registered users by October 15.
But at the time, the name of μ’s didn’t exist yet, so the single was released under the artist name “Love Live! School idol project.”