The Witch of the West Is Dead (2008)

Mai (Mayu Takahashi), a junior high school student, refuses to go to school. Her parents are living apart, so her distressed but sympathetic mother sends her to stay with her grandmother in the country for awhile. What a change it turns out to be. Her grandmother gives Mai training as a witch (she calls herself "The Witch of the West") and also teaches Mai important values on life itself.