Rain
In one universe, Rain was an adorable “little watery goopy baby dragon”. Jenny Everywhere encountered them in the course of her adventures across the Makara Isles, specifically running into them after a flash flood forced her and her travelling companions to take refuge in a treehouse village. Jenny took an instant liking to the cute little creature, and apparently took them with her as her travels resumed. Rain was with the group when they visited a haunted mansion, where Rain soon found themself pursued by a crazed ghost chef who was intent on “mak[ing] some kind of blue raspberry gelato out of them”. (PROSE: Jenny Everywhere's Twitter)
Behind the scenes
It is not clear if Rain is a sapient, if youthful, companion of Jenny Everywhere, or more of a team pet.