De La Fille is a princess from the Kingdom of Gem Domain in the world of Granblue Fantasy. Known for her beauty and intelligence, she is deeply passionate about gems and their mystical powers. Despite her royal status, she is dedicated to helping others and uses her knowledge of gems to support her allies. In the series, she plays a crucial role as a magic-wielding supporter, using her crystal-based abilities to protect and enhance her companions in battle, all while maintaining a regal and composed demeanor.