Hi! Mari-chan: Etoile of Love

Mari Saotome is a cry-baby. She lives only with her father since her mother is already pass away. She falls in love with ballet after seeing a ballet performance. One day, she hears her aunt and father arguing about her becoming a ballerina. To her surprises, she hears that her mother is still alive and also a professional ballerina, but her whereabouts is unknown due to divorce. From that day, Mari wants to be known in the entire world, so she can find her mother.

(from mangaupdates)