Chihe is a staff of an olfactory measurement company. He is very sensitive to any odor smell. One day, his father brought a lost dog back to his home and left for a long journey. As Chihe has never raised a dog before, he is very nervous. At first, he was obsessed by the odor of a dog and he had never thought of communicating with a dog with human languages. When he find that the dog can speak and understand his meanings, he finally build up a sincere friendship with him. In fact, a dog will also be obsessed by the odor of a human being. They can also be deeply touched by true friendship and love...