Aki begins her diving training but has a hard time reaching the uni at the bottom. During her vending chores at the train station, she sees Hibiki again, taking pictures of Yui who was posing willingly like a model. Aki wants to thank the man for helping her pass the underwater test but he is rude to her, and tells her to "buzz off, ugly." Aki gets mad and throws uni at him. Despite that, she was able to talk to Yui who remembers her from before. Yui says she has a blog and that is how Hibiki got in touch with her, asking if he could take pictures of her. Aki is in awe of Yui's prettiness, and was delighted to be invited by her to some town activity the next day. It turns out to be volunteer work, making parade floats for the city's upcoming Autumn Festival. Aki feels happy being with everyone but feels sad that she will be leaving soon. Yui, on the other hand, loves to talk about Tokyo (even though she's never been there), and does not seem to notice the beauty of her own hometown. Aki decides to forget about her sadness, make the most of her remaining time and see all that she can about Kitasanriku. So she goes with Oda Ben (amber miner) and visits the amber mine that he himself had dug up. Here, she is able to let out her feelings by shouting: "I don't want to go back to Tokyo!! I want to stay in Kitasanriku forever!!"
夏（宮本信子）から素もぐりの許可が出て、本格的に海女修業が始まったアキ（能年玲奈）は、北鉄の中で同級生・足立ユイ（橋本愛）と出会い、親しくなる。東京になじめず、北三陸の町に居心地のよさを感じているアキとは正反対に、ユイは田舎を嫌い東京に強い憧れを抱いていた。町では、秋祭りに向けて山車の制作が始まった。ますます北三陸を離れがたい思いが募ったアキは、琥珀（こはく）掘りの勉（塩見三省）の坑道に向かい…。
