The amphibious Aranoas inhabit shallow brackish estuaries, rivers and lagoons. Being adept swimmers, they possess tough, vibrant scales that serve to protect the dragon from superficial physical harm, and double as a means to attract mates. Their large, cavernous maws are adapted to swallowing fish whole, and they have powerful limbs to propel them through the water. When mating, males and females will typically vie for the interest of the individual with the brightest scales and the largest dorsal fin. Due to this attraction, they are also prone to collecting shiny and colorful objects that they come across. With a diet primarily comprised of large freshwater or pelagic fish, they often hunt in groups to encircle schools of fish, making for an easier meal. While not very social, Aranoas will often inhabit areas in close proximity to each other should they require assistance in hunting, or to band together to ward off other species who pose a threat to their territory.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Isuzu's name is always misspelled in documentation, but as long as they know they're talking about her, a few misplaced letters is probably fine. She's on land often to see the humans and dragons present on that beach that day. Some folks she talks to find it strange that Itzuzu doesn't personally know any other Aranoas, but she was raised among a bunch of different dragon breeds, so now, hanging out in the Servo Pelagic Zone with a motley bunch is normal to her. Though she enjoys observing land dwellers for long periods of time, she knows she can't be away from her group for too long -- more than half a day, usually -- because they will worry about her. Then they will draw lots to determine who has to go ashore to look for her, and no one likes doing that. Isutzu half-heartedly assures them that she's fine and they're worrywarts, but she's aware of the risks she's taking since she can't quickly escape danger on land.