Naegino Sora is a 16 year old girl who yearns for the "Kaleido Stage" she once saw with her now deceased parents. And so, alone she sets off to America from Japan to go for an audition.
However, Sora arrives at the audition late and misses her chance of a lifetime... But that is just the start of the challenges that she must face to become a top entertainer. As she works hard on beautiful stages and goes through times of discouragement, the conscience of a professional awakens in her.