Kenichi (Masanobu Takashima), who, after World War II, decides to open an obedience school since he loves dogs and believes more people will want them as pets. However, all his "students" are invariably from rich families who look on their dogs as toys. Then he meets Kawai (Atsushi Ito), a young blind man, and Kenichi trains his German shepherd. It turns out to be more difficult than he imagined.