Yuuna Yuuki is the cheerful and determined protagonist of the anime series 'Yuuki Yuuna wa Yuusha de Aru' (Yuki Yuna is a Hero). As a second-year middle school student and a member of the Hero Club, Yuuna is always eager to help others. She is chosen to become a magical girl tasked with protecting the world from mysterious creatures called Vertex. Yuuna’s unwavering optimism, bravery, and kindness inspire her friends throughout their challenging battles.