Valerie, known as Sakuya (サクヤ, Sakuya) in Japanese, is a minor supporting character in Etrian Odyssey and Etrian Odyssey Untold: The Millennium Girl. She is the Golden Deer Pub's Publican, serving as a channeling system for the requests.
She likes to help Etria's guild members.
As the game goes on, she starts to admire the player's guild, even telling the player, during the Sandy Barrens' explorations, that the player's guild is her favorite guild.
She also seem to care about other explorers from different guilds, such as during the looking for the rainbow bandana explorer quest.
As the channel between Etria's people and the Guild Members, she entrusts the player with quests; as such, she is also the only way to encounter several optional monsters.
This is her only role in the game, as she doesn't have a pivotal role.