She is a doppelgänger of Dawn, only differing in appearance by her hairstyle, clothing, and voice. Wishing to escape from her royal duties and compete in a Pokémon Contest after all her hard training with Togekiss, the princess swapped identities with Dawn.
Using her Togekiss, Salvia won against Jessilina in the final round and earned the Arrowroot TownRibbon. Out of kindness, she gave the Ribbon she won to Jessilina rather than keeping it for herself. She also gave her Togekiss to Dawn so that it could compete in more Contests.