Dog DaysPonta the Labrador retriever is no ordinary dog. With the magic Guru Guru Bone, she can turn at will into a human girl. In her human form, Ponta has fallen in love with Mirai Iwaki - and the couple has developed an uncoventional but powerful relationship. But what would happen if Mirai transformed instead? As a puppy, Ponta learned the true meaning of friendship and love. Might Mirai also benefit from living life as a dog? Of course, there's a downside. For Ponta, all the changing between puppy and girl has taken its toll... which raises the question: Is the Guru Guru Bone more a curse than a blessing?