Haai! Mari-chan: Ai no Etoile

Overview

Mari Saotome is a cry-baby. She lives only with her father, as her mother has already passed away. She falls in love with ballet after seeing a performance, and starts taking classes. One day, she hears her aunt and father arguing about her becoming a ballerina. To her surprise, she overhears that her mother is still alive and is a professional ballerina, but her whereabouts is unknown due to divorce. From that day on, Mari-chan wants to be known by the whole world, so she can find her mother.

Source: AniList