After a change in magazine publication, Kozue Amano continues his "Aqua" story under the name "Aria." This manga picks up close to where Aqua left off, to a point where nothing is lost. Amano does well to remind readers of the basic gist of the story thus far, without making a nuisance to the existing reader-base. We understand that Akari is training to be a full-fledged Undine for Aria Company, and we understand she is friends with Aika and Alicia.
In a sense, the brevity with which Aqua is recapped kinda speaks for the possible unimportance of most of that manga's events, but this is the charm of slice-of-life manga: we can summarize the plot easily enough, but such a dismissal does no justice to the episodes themselves, and waving the plot of Aqua away in a few lines does not "ruin" the beauty of, e.g., the Cait Sith or "Aria as a superhero" stories.
This volume then continues the tradition set by the Aqua volumes, featuring a handful of mostly-standalone stories that each have their own weight without getting in the way of a Big Picture, but also while contributing to a more "atmospheric" or "ethereal" "Feeling" to the manga, rather than make the whole thing about "Narrative."
The real standout here is the "Sun Shower" chapter (Navigation 4). Essentially a spiritual successor to the Cait Sith story from Aqua, this is another tale that injects a wee bit of mysticism and fantasy to the manga's world. Alicia and Akari visit a small island in Neo-Venezia's archipelago. The island is themed after Japanese culture, and it's main point of interest is a shrine for a fox deity, with a long trail of torii gates leading to the main shrine. An old lady at a sushi stand in front of the torii path warns Akari about the fox god, who is rumored to spirit people away. Aside from the existence of a cat god earlier, we've seen nothing in the overall series to suggest fantasy elements run more rampant than the sci-fi elements, so this tale has a pleasant flavor for switching things up. There's a slight mystery to the fox god which may or may not be resolved, but the important thing is that Akari is not spirited away, and so we cannot tell if anything that appeared supernatural was actually "real," the ambiguity adding more color to the world of Planet Aqua. We've seen cat gods and fox gods, but Akari has no concrete proof, and so neither does the reader. But the existence of the supernatural is unimportant, as the little stories are meant to evoke Wonder, plain and simple, and to that effect Amano more than succeeds in his writing. If we, the Audience, place too much "weight" on the existence of gods and things in the world of Aqua/Aria, we are certainly missing the point. We can have hints at the supernatural, or we can eschew it entirely, as long as it all fits the "vibe" of what we wish for in reading this series.
Comfy as fuck.