A young girl, Ai, arrives at Aria Company and demands that Akari give her a gondola tour of the city of Neo-Venezia. When Akari protests that, as a Single (journeyman undine), she is not allowed to guide customers without a supervisor, Ai insists she be taken as a 'friend' instead of a 'customer,' and Akari gives in. As they tour Neo-Venezia, Ai tells Akari she does not like it because of its inconveniences, to which Akari replies that the slow pace is exactly what she likes about Aqua. After meeting Akari's friend Aika for gondola practice and lunch, the older girls learn that Ai was predisposed to dislike Neo-Venezia because of her older sister's gushing after her honeymoon, which included a tour from Alicia. When President Aria, the company president and mascot, falls overboard and drifts out into the bay, Akari rows after him but he is saved instead by Alicia. At the end of the day, Ai has come to like Neo-Venezia through Akari and Aika, and asks to become Akari's penpal. That evening, Akari tells her mentor, Alicia, that it is a miracle to like something you had previously disliked.