Sora Naegino

Sora is the main protagonist of Kaleido Star. Her parents took her to Kaleido Stage when she was young. Although they died shortly thereafter, and Sora was adopted by her father's cousin and his wife, Sora is inspired by this childhood memory to become a member of the Stage when she reaches adulthood. With her adoptive parent's hesitant approval she travels to the United States to audition. While Sora wanders around lost, her luggage is stolen. As a consequence of chasing the thief and speaking to the police, she is late to the audition; Layla shuns Sora, but the owner Kalos gives her a chance to perform in the actual show. Most of the cast initially disapprove Sora because of the special circumstances through which she joins; they accept Sora due to her persistence and hard work along with a magnetic personality, as well as performing a stunt called "The Golden Phoenix". Though Sora is a fairly talented performer, there are often huge gaps in her ability, especially on the trapeze. This is because she was never taught before joining the Stage and the so the first maneuver she learns is Layla's Golden Phoenix, an exceptionally difficult move, so she knows mostly only extremely challenging maneuvers and very little of the basics.
In the beginning of the series Sora is the only one who can see the magical stage spirit Fool. This character reveals she has been chosen by the stage. In the first season, Fool reveals only she can perform the Legendary Great Maneuver with Layla. In the second, he reveals that she has the potential to become a "true star".
In the second season, Sora had been treated unfairly by Leon, and May tries to prove that she is better than Sora, and should have been the one to perform the legendary maneuver with Layla. at first, Sora aimed for being Leon's partner, but then, while doing the Angel's act with Yuri, she realizes what she wanted was to turn kaledoio stage into the joyful and happy stage just like the one she saw when she first saw Kaleido Stage, Alice in Wonderland, along with no conflict, and stick to that dream, which she told Layla, while still wanting to be a true star.