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Futaba and Hikari invite Ai to hang out with them as they go shopping for logbooks and swimsuits. Afterwards, the girls go to the beach, where Futaba tells Kino about all the things she has learned since meeting Hikari. Futaba expresses her concerns about whether she can become a suitable buddy for Hikari, though Hikari expresses that she's had times when she lost her way as well, saying that it is a chance to have more fun. Afterwards, Futaba finally manages to pass the pool course, allowing her to move on to the Open Diver course with everyone.
Episodes
1The Story of the Girl and the Ocean 2The Story of Doing Something Bad With Hikari 3The Story of the Secrets to Excitement and Happiness 4The Story of Excitement and the Despairing Heart 5The Story of the First Time at Sea With Friends 6The Story of the False Wish 7The Story of the End of Rain / The Story of the Beginning of Summer 8The Story of the Feelings Yet Hidden / The Story of the Things Yet Unknown 9The Story of the Memories You Can't Erase 10The Story of Losing Your Way in Today 11The Story of the Cat and the Kitten 12The Story of the Blue World