Casey has loved ballet since she was a child. But as time passed, she began to feel out of place because of her distinctive neutral appearance and unstable ability. So, Casey gradually deviated from ballet and chose basketball. However, she never smiled from the bottom of her heart afterwards.

Later, Giselle invited Casey to watch her first performance. Casey couldn't help but think of the joy of dancing ballet. And when she went backstage to congratulate Giselle, she discovered the music box she had given her as a child. All the jolly dancing memories flooded Casey's mind while the melody played. Finally, she let go of all distracting thoughts and danced the long-forgotten ballet.