Leticia Apple is the false name adopted by Leticia La Mew Symphonia, the main heroine of Princess Holiday. She is the princess of the Symphonia Kingdom who flees her sheltered life in the castle to experience the outside world. Her true identity is the princess of Symphonia, and she is portrayed as a young woman with a naive personality, possessing blue eyes and long blonde hair. She uses the alias Leticia Apple when interacting with those who do not know she is royalty, a name she chooses after seeing a large apple tree in the garden of the Korogaru Ringotei pub. Her primary motivation is her desire to understand the lives of common people, which leads her to run away from her guards. Cliff Cloud rescues her by accident during her escape. To conceal her identity and integrate into everyday life, she begins working at the pub Korogaru Ringotei. Her role in the story is central as the main heroine, and her journey involves adapting to a world she has never known, which is difficult due to her sheltered upbringing and naive disposition. She must keep her royal status secret from certain individuals, such as Rachel Harvest, who harbors a strong dislike for the monarchy and nobility. Her key relationships include Cliff Cloud, the wandering bard who assists her in staying undercover; Eleanor Fortworth, a knight and childhood friend of Cliff who serves as Leticia's guard; and Shilphy Cloud, Cliff's kind younger sister who is a probationary sister at the local church. Leticia's development centers on her growth as she learns to navigate commoner life, adjusts to working at the pub, and becomes more accustomed to the outside world, gradually moving beyond her initial naivety. Notably, she does not display any supernatural or exceptional combat abilities, as her significance lies in her role as a princess learning about ordinary life.