Akiha Shishido is the protagonist of the anime series "Sora wo Kakeru Shoujo" (The Girl Who Leapt Through Space). She is a cheerful and energetic high school student who becomes involved in a series of adventures when she encounters an AI named Leopard. Akiha is known for her optimistic outlook and determination, often leading her friends through various challenges. Throughout the series, she plays a central role in uncovering the mysteries surrounding Leopard and the space colony, while also growing and learning more about herself and her family's legacy.