Umiko is the personal servant and handmaiden to Queen. In her school days, she found herself in the same class as Puru, and the two grew to be good friends, Umiko finding the Azumarill a joy to be around because of his sense of humor. Umiko managed to fly up the ranks, becoming Queen's servant after proving her great work ethic and intellect.

While she is happy to have climbed up so fast, sadness lingers in her because of Puru's departing from the kingdom, and hopes she can see him again one day.