Well he's shown up in a few stories already, but a short while ago I finally commissioned official art of Kai, my koi dragon character! He's athletic by default, but rather prone to getting expanded in various ways of course. Kai gives me a good excuse to experiment with underwater settings and scenarios for stories (in the past I'd considered both an orca and an eel for similar purposes). He's treated as a friend of my sona August, and in fantasy settings tends to be a "privateer" of some sort :3

Art by the amazing  Nommz!