Ep 21. The Puzzling Amazing Masked star

Sora is busy practicing for her upcoming performance with Layla when she catches sight of a mysterious masked figure performing stunts in the sky. The masked figure introduces himself as the Amazing Masked star and challenges anyone to try and catch him in the sky. Sora is intrigued by the masked figure's daring acrobatics and decides to take up his challenge.

Meanwhile, Kaleido Stage is preparing for the annual circus festival, and Mr. Policeman has been called in to oversee security. Ken also makes a surprise appearance at the festival to perform with his old circus troupe. However, Ken's reunion with his old circus mates isn't as joyful as he had hoped, and he seems to be hiding something from everyone else.

Back at Kaleido Stage, Sora is continuing to practice for her performance with Layla when Ken, who had been watching her rehearsals secretly, offers her some unsolicited advice. Sora is initially hesitant to take Ken's advice since he is known for his unconventional and reckless style, but she eventually decides to give it a try. With Ken's advice and training, Sora's just might be able to catch the Amazing Masked star.

As the circus festival draws nearer, Sora is getting closer to mastering the techniques that Ken taught her. While practicing one day, Sora is visited by Kalos who warns her about the dangers of trying to imitate the Amazing Masked star's stunts. Sora ignores Kalos' warning and continues to practice, hoping to impress not only Layla but also everyone else at Kaleido Stage.

On the day of the circus festival, Sora finds herself facing a difficult decision. Should she attempt to perform the Amazing Masked star's stunts and risk getting everyone's approval, or should she stick to the safe and familiar routine she had been practicing with Layla? With just moments to go before her performance, Sora makes her decision and takes to the sky.

The Puzzling Amazing Masked star is a thrilling episode that sees Sora trying to break out of her comfort zone and take on new challenges. With the help of Ken's training, Sora is able to push herself to new heights and attempt daring new stunts. This episode is also notable for its focus on Ken's character, as we learn more about his past and his relationship with his old circus troupe. Overall, this is an exciting and emotionally engaging episode that is sure to keep viewers on the edge of their seats.