If there are no peers of your age in your grandmother's village, only old people, any vacation can turn into a punishment. Mary, a 10-year-old girl exiled by her parents to a remote village for the summer, finds herself with nothing to do. One day, she decides to follow a stray cat and accidentally discovers a magical flower in the forest. The petals of this "witch's eye" bring a simple kitchen broom to life, and it takes Mary far beyond the clouds, to a real school of witchcraft and magic. Upon meeting the local teachers, Mary decides to pose as a new student from a powerful witch family.