μ's (pronounced "Muse") is a school idol group in Love Live!. They were the school idol group of Otonokizaka High School. The group consists of nine members and was initially formed with the purpose of bringing attention to the school as it was to be shut down due to a lack of future enrolling students. The group disbanded in the anime after the 3rd years graduated, staying true to their status as school idols, unlike their rival A-RISE, which choose to stay as an idol group even after school. In other words, μ's no longer exist as an idol group.


The name "μ's" came from Greek Mythology's 'nine goddess of music', which consists of nine members.

In the anime, Nozomi Tojo is the one who grant the group this name by placing it in a box. In the manga, however, it is Honoka Kosaka by writing it on her own in Love Live! submission form. However, despite the meaning of the group's name, μ's had performed several times without all nine members present in the anime.