The Young Girls of Rochefort movie plot

The blonde Diffin dances gracefully, and the red-haired Sulange sings sweetly. The two sisters are choreographing and directing songs for the upcoming summer carnival in Roport, France. The art dealer Ji Rong has been pursuing Difen, but Difen already has a crush on him - he painted a young painter and sailor Mai Sans just like her, but she has never been able to meet him. Su Lanzhi wrote a concerto by herself, and wanted to ask Simon, the owner of the piano shop, to recommend it to a famous composer, but was unable to contact the composer. Depressed, she met Miller at this time, and the two fell in love at first sight, but Miller was actually the composer. The sisters were invited to perform at the carnival together, achieving unprecedented success and preparing to travel to Paris for development   .