Ep. 9: Aika and friends visit retired undine Akino for guidance on their training.

Aika, Alice, and Akari learn about Akino, the former top undine of Neo-Venezia and founder of Aria Company. Feeling stuck in her training, Aika joins her friends to visit Akino, who now lives in the countryside. Akino asks for help with household chores, which Aika interprets as professional exercises. She views collecting chestnuts as identifying customers and digging up sweet potatoes as handling fragile cargo. However, Alice demonstrates quiet efficiency while Akari enjoys the simple tasks, both achieving more than Aika. Later, under the stars, Akino advises that true mastery comes from enjoying every moment rather than forcing results. The trainees wish to become great undines as they watch shooting stars.

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