Everyone tries to ignore what Chuubei said by continuing on with the singing. But Haruko turns off the music and declares that the party's over. But Aki keeps asking everyone what Chuubei meant regarding her mom wanting to be an idol. Haruko tells her to quit it. "Can't you see no one wants to talk about it?!" She says people in the countryside like to pretend that everything is fine even if, so to speak, there is an elephant in the room. With the mood ruined, the party goers call it a night. (Feel so sorry for Aki T.T) In bed, Aki who couldn't sleep, is counting uni. She couldn't wrap her head around the notion that her mom who used to be a Sukeban, had also wanted to be an idol? But then, things her mom said before - her prejudice against the "idol life"... Could it be something had happened in the past? Next day in school, Aki realizes she had never heard her mom ever sing before, not even a lullaby. Yui says she had asked her father about it. "Dad said your mom had joined and won singing contests before." So after school they go to Yui's house to do some investigating. Adachi Isao shows Aki old pics of her mom winning singing contests from around the prefecture when she was young. And at the Co-op, they show Aki the karaoke machine they used when Haruko would sing on the eve of her father's departure. Katsue: "She was a sweet girl when she was singing... but sometimes she and Natsu would have their differences." By then, Aki is convinced that her mom definitely wanted to be an idol. But why did everyone kept it a secret from her? Aki wakes up late and rushes for school while her family eats breakfast. Haruko, irritated by the presence of her husband, keeps asking him to go home. Chuubei meanwhile mentions he will go and have his annual medical check-up. In school, Aki sees that Taneichi has bought a similar misanga for himself, prompting Isono-sensei to assume they are a couple, and proceeds to tell everyone about it ("Scoop! Scoop!"). Yui arrives telling
アキ（能年玲奈）の誕生日パーティーで、忠兵衛（蟹江敬三）が爆弾発言。春子（小泉今日子）が若いころ、歌手になりたくて芸能界を目指していたというのだ。驚いたアキは、もっと母のことが知りたくなる。すると、数々のコンテストで優勝したことなど、町の人々が隠していた事実が浮かび上がる。そんなころ、アキは、憧れの種市（福士蒼汰）の手に、自分にプレゼントしてくれたのと同じミサンガがあるのを見つける。おそろい！？
アキ（能年玲奈）の誕生パーティーで忠兵衛（蟹江敬三）が爆弾発言。アキは、春子（小泉今日子）の隠された過去を知る。若き日の母の姿をもっと知りたいアキは、春子がかつて使っていた部屋を探り、町の人々に話を聞いて回る。次第に分かってくる春子がかつて抱いた大きな夢や、夏（宮本信子）との衝突、家出の理由に驚きを隠せないアキ。一方、地元テレビ局の番組に出演も決まり盛り上がるユイ（橋本愛）は、一緒に上京してアイドルを目指そうとアキを誘うが、すかさず春子に反対される。その頃、忠兵衛が遠洋漁業の漁師を引退することを突然宣言し、スーパーの鮮魚売り場で働くことに。どうやら心臓の調子が良くなく医者に止められたらしい。正宗（尾美としのり）も勝手に地元タクシー会社への就職を決めてきて、天野家は５人家族に。さらに、リアスには風変わりな青年・水口（松田龍平）が現れる。何と琥珀に興味があって勉（塩見三省）に弟子入りしたという。海への思いが断ち切れない忠兵衛は、職場から逃亡。再び遠洋漁業に出たいと言い出す。別れの辛さをこらえる夏に、アキと春子が寄り添う。そして、忠兵衛の送別会、ついに春子が長年封印してきた歌を歌う瞬間が？！
