Synopsis[]
A year after Akari's arrival on Aqua, she and Aika meet Alice, an apprentice undine (Pair) with impressive rowing skills. Used to jealousy from older undines, Alice bluntly refuses their company and accepts Aika's challenge to a race. Akari speeds ahead by rowing backwards but, distracted by picking the first flowers of spring, finishes last. When Akari asks whether rowing is fun, Alice agrees with a smile.
Alicia takes Akari on a picnic to look for spring, but while following an old railway line she chooses the wrong fork. They find an abandoned rail-car beneath a large blooming cherry tree, and while they admire it Alicia tells a story about the importance of mistakes in serendipity.
Akari, Aika, and Alice find in a borrowed gondola a map that sends them on a treasure hunt. The final clue leads them to a beautiful hilltop view of Neo-Venezia, and they return the clues where they found them so others can find this treasure for themselves.
Aika runs away to Aria Company after a fight with her strict mentor, Akira, who follows her, and the trainees learn that their mentors have been friends and rivals since childhood. Akira sets Akari and Aika to a gondola race to determine where Aika will stay, but partway through Aika stops because she plans to return, as she respects Akira for being the only Himeya employee to stand up to her as heir to the company.
On Feste del Bocolo—a day when men give a single red rose to the women he loves—Akatsuki calls Akari for help carrying the baskets of roses he wishes to give Alicia. Because he's nervous of approaching Alicia, he practices presenting them to Akari. Alicia sees this and wishes the two well in their relationship.