Sora Naegino is the protagonist of the anime series Kaleido Star. She is a cheerful and determined young girl from Japan who dreams of becoming a star performer at the Kaleido Stage, a prestigious circus and theater troupe. Sora is known for her optimism, resilience, and unyielding spirit, which help her overcome numerous challenges and setbacks. Throughout the series, she develops her skills as an acrobat and performer, while also forming strong friendships with her fellow performers. Her journey is one of growth, ambition, and the pursuit of her dreams against all odds.