µ's schafft es durch die regionalen Vorrunden. Als die Mädchen erfahren, dass ihre Rivalinnen A-RISE es ebenfalls geschafft haben, sind sie noch motivierter. Doch aus irgendeinem Grund erscheint Nico nicht mehr zum Training. Das erscheint verdächtig, und die Mädchen verfolgen sie in einen Supermarkt, wo sie beobachten, wie Nico Einkäufe tätigt.
After an agonizing wait for the results, μ's are delighted to discover they have qualified the first preliminary round, along with A-RISE. As the girls strive to practice hard for the next round, Nico seems to be preoccupied by something, so the others decide to follow her, though she ends up spotting them and escapes. Whilst wondering what Nico is up to, they end up meeting her younger sister, Kokoro, who, along with her siblings Kotaro and Koko, has been led to believe that Nico is the star of μ's and the others are merely her backup dancers. After finally being pinned down by the understandably bemused girls, Nico explains she has been skipping practice to look after her siblings whilst their parents are away, stating that she has been telling them she was a super idol from the beginning. Nozomi believes she has kept this front up even after her attempt at being an idol during her first year fell apart, as she didn't want to destroy their vision of her. Upon hearing about this, the girls arrange for Nico to give a special performance for her siblings, claiming it to be her last performance as a 'solo idol' before joining her fellow idols as equals in μ's.
Nico s’éclipse de la répétition. Cherchant à comprendre pourquoi, les autres filles décident de se rendre chez elle. Elles ne sont pas au bout de leurs surprises
地区予選を見事突破したμ's。ライバルのA-RISEも同じく地区予選を突破したと知り、ますます気合いが入る。
そんななか、なぜかにこが練習に参加せず帰宅してしまう。怪しく思った穂乃果たちはにこを尾行し、スーパーで買い物をしているところを目撃する。
追いかけるものの、振り切られてしまうメンバー。釈然としない一同だったが、そんな彼女たちの前を、にこによく似た少女が通りかかった。
その少女は、にこの妹だと名乗るのだが！？
러브라이브 최종예선에 진출한 뮤즈 멤버들은 연습에 한층 더 정진하기로 한다. 하지만 이 상황에 어울리지 않게 니코가 연습을 빼먹고 몰래 도망치는데... 그런데 니코를 쫓다 놓쳐버린 멤버들 앞에 원래 작은 니코보다 더 작은 축소판 니코가!
Las chicas siguen abriéndose paso exitosamente y ya han superado las preliminares. En este episodio descubrirán un misterio sobre Nico-chan que antes ni sospechaban.
成功通过地区预赛的μ's，在知道敌手A-RISE也同样通过预赛后，训练更加地卖力。但在这时妮可却不知为何没有参加练习就直接回家。感到奇怪的穗乃果等人因此跟踪了妮可，结果却看到她在超市买东西。虽然努力的继续跟踪，但却被妮可给跑掉了。就在这时有个与妮可长得很相似的少女刚好经过，那个少女自称是妮可的妹妹……
