Auch Kanan, Dia und Mari waren mal in einer Schul-Idol-Gruppe. Aber Kanan möchte davon nichts mehr wissen. Chikas Neugier und Zielstrebigkeit hilft Kanan und Mari einen alten Konflikt aus der Welt zu räumen.
As the girls decide to do something for the upcoming summer festival, Chika becomes curious as to why Kanan quit being an idol. While following Kanan on her morning run, the girls overhear an awkward conversation between her and Mari. The next day, as Kanan returns to school, Chika becomes sick of everyone arguing and tries to confront her, Dia, and Mari about what really happened. While Kanan remains defiant, Dia reveals to the others that during the Tokyo event, Kanan chose not to sing on purpose because she didn't want an injury Mari had to get worse by performing, further revealing that she quit being an idol to stop Mari squandering so many possibilities for her future. Hearing about all of this, Mari properly confronts Kanan, and the two finally manage to make up with each other, after which both of them become members of Aqours alongside Dia, who is revealed to be the one who came up with the group's name.
東京での出来事を乗り越えて、もう一度走り始めた千歌たち。自分たちが今できる全力を
見てもらうしかない、と、沼津の花火大会からの出演のオファーを受けることに決める。
ダイヤから、学校を休学している3年生の松浦果南が、過去にダイヤ、鞠莉とともに
スクールアイドルとして活動していたことを明かされた千歌。
自分が知る果南は、一度失敗をした位で諦めてしまうはずがない、と、果南がスクール
アイドルを辞めてしまった本当の理由を調べ始める――。
한 번 실패했다 하더라도 다시 노력하면 반드시 해낼 수 있다는 치카. 아쿠아는 누마즈에서 열리는 최고의 여름 축제인 불꽃놀이를 통해, 재기를 꿈꾼다. 한편 전에 스쿨 아이돌을 그만뒀던 카난을, 마리가 찾아가 보는데…
Chika e as outras descobrem os segredos que levaram ao fim do grupo de idols das meninas do terceiro ano.
Los secretos empiezan a salir a la luz, y el verdadero motivo por el que Kanan y Dia se oponen a unirse a Aqours será revelado de una vez por todas.
