Two wonderful things have happened: it's time for Neo-Venezia's annual Carnevale, and Ai has come back to Aqua for a visit! As Akari and Ai wander through streets full of bright colors and beautiful masks, they catch a glimpse of Casanova, the mysterious master of ceremonies. Who is the man behind the mask? The two are curious, but they'll need to be careful. You know what they say about curiosity and the cat, after all...

Akari has been given her very first solo job: carrying a shipment of Neo-Venezian glassware. They're beautiful pieces that sparkle in the sun, but the glassmaker's apprentice has a disposition that's anything but bright. He's sour and angry, and he's the one who'll be traveling with Akari as she delivers the shipment. Will Akari be able to handle the pressure of fragile cargo and a critical taskmaster?

Many of the water touring companies in Neo-Venezia have their own palina - a tall, decorated pole used to hitch gondolas. But strangely, the Aria Company doesn't have one. When Akari asks Alicia about it, Alicia gives her full permission to make a palina of her own! It's tough work building something from scratch, but Akari is determined to make the best palina possible.

When Akari takes her gondola in for a routine inspection, she's given some startling news - the repairman tells her that the gondola is now too old and worn for tourism use, and should be sold off for hauling cargo. Although she at first resists, Akari knows that the repairman is right; so she decides to travel with her gondola to all the wonderful places that she's been, as a way of saying goodbye.

As snow softly covers Neo-Venezia, Akari and Alicia are out for a walk. Akari asks Alicia what she thought as a child - back then, what did she want to be like when she grew up? But in response, Alicia just begins to roll a ball of snow on the ground. As they walk around the city pushing the snowball, it grows bigger and bigger, to the point where people remark on it everywhere they go. Alicia only continues to smile, but it's certain that her answer is hidden there somewhere.

Akari finds herself nervous coaching a new undine as a Prima, until she awakens to find that it is just a dream. To soothe her worries, Alicia recalls stories of her beginnings as a Prima, as well as the memories she made.

Alice and Athena are going on a picnic! Alice chooses a date and makes all sorts of elaborate plans... but Athena gets overloaded with work, and can't come. Athena tries to chase after Alice to apologize, but trips and falls - and somehow loses her memory!

As Akari and Aika leave for practice one cold winter morning, Aika has something to tell Akari. The two of them can't practice together anymore... As if that shock weren't enough, Alicia has something important to say as well.