μ's is the school idol group of Otonokizaka High School led and formed by Kosaka Honoka. They are a group of nine girls who formed the group in order to save their school from shutting down. They debuted with the song Bokura no LIVE Kimi to no LIFE and their most recent single is A song for You! You? You!!.
Though in the anime they had been disbanded for years before Aqours had been formed, in the game the groups are already present throughout the same timeline with the girls from both groups becoming good friends.
The name "μ's" came from Greek Mythology's 'nine goddesses of music', which consists of nine members. This name, canonically, was suggested by Tojo Nozomi, while in the manga, Honoka is the one who mentions it. Even with this name, they have performed songs without all nine members being present.
- Bokura no LIVE Kimi to no LIFE (僕らのLIVE 君とのLIFE)
- Snow halation
- Natsuiro Egao de 1,2,Jump! (夏色えがおで1,2,Jump!)
- Mogyutto "love" de Sekkin Chuu! (もぎゅっと“love”で接近中!)
- Wonderful Rush
- Bokura wa Ima no Naka de (僕らは今のなかで)
- Wonder zone
- No brand girls
- Music S.T.A.R.T!!
- LOVELESS WORLD
- Sore wa Bokutachi no Kiseki (それは僕たちの奇跡)
- Donna Toki mo Zutto (どんなときもずっと)
- COLORFUL VOICE
- Yume no Tobira (ユメノトビラ)
- KiRa-KiRa Sensation!
- Happy maker!
- Angelic Angel
- HEART to HEART!
- Arashi no Naka no Koi dakara (嵐のなかの恋だから)
- Someday of my life
- Koi no Signal Rin rin rin! (恋のシグナル Rin rin rin!)
- Mahoutsukai Hajimemashita! (まほうつかいはじめました！)
- Junai Lens (純愛レンズ)
- Blueberry♥Train (ぶる～べりぃ♡とれいん)
- Kodoku no Heaven (孤独なHeaven)
- Yuuki no Reason (勇気のReason)
- Arifureta Kanashimi no Hate (ありふれた悲しみの果て)