Song of the Spring Pony (1985)

Hoshino Bunzo raises up his orphan grandson, Keiji whose right leg gets paralyzed when he was an infant. Bunzo loves Keiji so much that he does every thing to protect his grandson. Sonoda Keiko, a new young teacher comes to the school when a new term starts. She wants Keiji to go back to school. After two years absence from school, Keiji tries to attend the class but he cannot continue. All pupils hold an exhibition of Keiji’s paintings in the village shrine to make him happy. He is very pleased and gives his paintings to them and to Keiko, he gives a painting entitled "Spring Pony". When this picture is awarded a prize in the National Friendship Painting Compettition, it is like a new beginning for Keiji’s family.

Unfortunately the movie Song of the Spring Pony is not yet available on HBO Max.