Aqours

Aqours (pronounced as aqua) is a school idol group from Uranohoshi Girls' High School, then Numazu High School, then Myoudou Academy's Junior High School, then back to Numazu High School again at the end of the series. The group was originally led by Kanan Matsuura, then was succeeded by Chika Takami. The original group consisted of three members (The third years). The reformed group consisted of nine members along with all original members. At the beginning of the movie, the group continues with six of the members at Seishin High School and is seen to be reformed by new members at the end of the movie. At the beginning of the series Pretty Cure & Love Live!, the nine members are still there and Dia, Kanan, and Mari didn't graduate yet.

Members
The members are in their original position:

Chika Takami - Founder, Leader, Reformed, Lyricist.

Riko Sakurauchi - Founder, Composer, Reformed.

Kanan Matsuura - Leader, Founder, Original, Reformed, Choreographer

Dia Kurosawa - Founder, Original.

You Watanabe - Founder, Reformed, Wardrobe supervisor.

Yoshiko Tsushima - Video editor

Hanamaru Kunikida - Unknown

Ruby Kurosawa - Wardrobe supervisor

Mari Ohara - Founder, Original

Here are the members that joined in each episode:

Chika Takami, You Watanabe - I Want To Shine!!

Riko Sakurauchi - Catch the Transfer Student!

Ruby Kurosawa, Hanamaru Kunikida - Two Girls' Feelings

Yoshiko Tsushima - Yohane Descends!

Mari Ohara, Kanan Matsuura, Dia Kurosawa - Young DREAMER

Here are the history of Aqours when they perform songs starting form three to nine members:

Kimeta yo Hand in Hand - I Want To Shine!, Three members excluding the first and third years.

Daisuki dattara daijoubu - First Step, Three members.

Yume de Yozora o Terashitai - Let's Make a PV, Six members excluding the third years.

Mijuku DREAMER - Young DREAMER, Nine members.

Omoi yo Hitotsu ni Nare - Aye aye my friend!, Eight members excluding Riko Sakurauchi.

Trivia

 * Unlike Muse, Aqours didn't disband when their third years graduated and instead continued as a six member group at the end of the movie Love Live! Sunshine!! The School Idol Movie: Over the Rainbow, but in The Pretty Cure & Love Live! Movie and the series, she and the other third years in Love Live! didn't graduate and it was after Aqours last performance in Uranohoshi Girls' High School. At the end of the movie, the Muse, Aqours, The Nijigasaki High School Idol Club, and Liella! members went back to their respectful universe and the third years graduated and went to college, leaving the first and second years behind, the Muse first and second years agree to continue as a six member group, with the help of Chika Takami.