During her time at Kaleido Stage, Sora is first rejected by everyone because they call her way of being accepted into the company as "getting in good with the boss" while they had to work hard and she is doing poorly in the training sessions. But soon after daring to attempt Layla's Golden Phoenix maneuver, in which she would be forced to leave if she failed to do so, she makes new friends in Anna and Mia. She manages to almost perform the maneuver and earns Layla's approval to stay at Kaleido Stage. She soon starts to make more friends like Sarah Dupont, the dorm supervisor, Marion Benigni, a young girl whose mother was a trampoline performer, Johnathan, a baby seal and Rosetta Passel, a diabolo prodigy who had trouble making the audience enjoy her performances. During Sora's beginning, Ken becomes Sora's personal trainer to help her with the basic skills she needs to improve on. At one point, Sora's adoptive father comes to visit and convince her to come back home. But ill fortune strikes when he has to be rushed to the hospital during one of Sora's performances. She still goes to see her father and agrees to return home. But at the airport, her uncle sees how much Sora loves being with her new friends and she is allowed to stay as he returns home. When Layla left for a movie filming, Sora was casted alongside Anna as a lead role for The Little Mermaid performance as the mermaid.
During this time, Sora starts watching Layla's performance from the last show and starts to try and mimic her movements. But when she tries that during the show, she doesn't receive the applause she hopes for. Feeling like that failed, Sora began trying to do her own thing during the show, ad libbing during the performance and confusing her fellow performers. She then asks the audience for their opinions about her performance after the show. At this point, the crew is just angry at her and scolds her, telling her to try and pass ideas to them before doing ad lib in the middle of a show. Sora feels so lost after that point. But she starts wondering what her character, the mermaid, must be like. She starts to live life as a mermaid, which included trying to move around without her legs and playing in the water with Johnathan, even to the point of sleeping in her costume. She then pitches her ideas to the crew and the other performers seem intrigued by Sora's suggestions. And when Layla came back to see Sora's show after the many bad reviews, she's shocked to see that Sora changed the sad tale into a happier story where everyone is more into their characters and are really having fun. After Cinderella and The Little Mermaid, she gets a chance to star in the production Arabian Nights alongside her idol Layla (it was a suggestion by Mr. Kenneth that Sora be Layla's partner). While Layla is against the idea of performing with Sora instead of Yuri, Sora's hard work and determination soon show Layla that there is something inside of Sora that she doesn't have.
Sora in her outfit from Arabian Nights
During training for the production, Layla moves into Sora's dormatory so the two can learn to get in sync with each other. It proves beneficial as the two are doing better in practice. Before the opening day, Layla brings Sora out onto a ferry ship into the ocean during a lightning storm to have a "real fight" between the two of them for the performance. After a fierce battle between the two, they take refuge in the ship when the storm is too severe to return to shore. There, Sora asks Layla why she joined Kaleido Stage and it was the same as Sora, she saw Alice in Wonderland when she was a child and she trained hard to become a member after her mother passed away and her father buried himself in his work. When they returned to Kaleido Stage the next day and perform together, the audience's applause is like nothing Layla has heard in a long time and the two have kindled a friendship.
But soon after, Kaleido Stage is losing performers to Yuri's new company and they put on a performance called Freedom to win back their performers and to keep the stage alive. However, Yuri takes over control of Kaleido Stage and cancels all of their future performances. He then kicks Sora and friends out of Kaleido Stage. Soon after, Sora's adoptive parents come to America telling Sora that her aunt Midori is pregnant. Sora is upset at the thought that she might lose her aunt's love when the baby is born. But after a pep talk from Ken, Sora sees that her aunt would never forget her. When her new baby sister was born, Sora was given the honor of naming her little sister. Sora chose the name Yume, which means "Dream" in Japanese (she was born premature like Sora was). Soon after, Sora, Anna and Mia work together to make their own theatre company , which they call "Freedom Lights", and invite their old friends to join, among which is Rosetta herself. Through many hardships and aide from Layla as "The Masked Star", Sora's group draws a lot of attention to them. But Yuri's affairs ruin their chances of anything more, including when they joined a competition with Layla and Yuri forcefully unmasks her during their performance and in front of her father. But during this time, Sora learns how devoted a friend and partner Layla is to Sora and she soon gains the ability to see Fool.
Sora and Layla performing the Legendary Great Maneuver
Fool reveals that Sora and Layla have been chosen by fate to perform The Legendary Great Maneuver, a maneuver that has caused the deaths of many performers including Yuri's father. With aide from Kalos and all of their friends, Sora and Layla's training in the Grand Canyon really pushes their limits as partners. But when Sora feels unable to do it, Layla's kind words help Sora stay on track. What really moved Sora was Layla's commitment to dieting and exercising to match her body weight with hers (it was a myth that two people who perform the maneuver would succeed more if they weigh the same). Sora hurries out and stops Layla from pushing herself anymore, crying that she'll gain weight and do whatever it takes to make sure the show is a success and not let Layla down. But right to her face, Layla replied "I never had a single doubt in my mind that you and I wouldn't be able to do this" and Sora starts to feel better. Even after promising not to keep secrets from each other at that point, Layla's shoulder is injured during training and Sora tries to help her, much to Layla's annoyance. When they return, despite all that's put against them, Sora and Layla perform the maneuver and succeed in winning back Kaleido Stage from Yuri's control at the cost of Layla's injured shoulder worsening and ending her Kaleido Stage career. Layla then asks Sora to be her dream and become a true Kaleido Star as she will be the new best performer when she leaves.