Filo is a primary character in the anime series "Tate no Yuusha no Nariagari" (The Rising of the Shield Hero). She is a Filolial, a bird-like creature that can transform into a human-girl form. Filo was hatched by Naofumi Iwatani, the Shield Hero, and quickly becomes a loyal companion to him. Known for her energetic and playful personality, Filo possesses incredible strength and speed. As the story progresses, she often assists Naofumi in battles and helps transport the group using her carriage-pulling abilities. Her childlike demeanor brings a sense of joy and innocence to the series.