Ponta the Labrador retriever is no ordinary dog. With the magic Guru Guru bone, she can turn into a human girl at will. In her human form, she has fallen in love with Mirai Ikawa–and the couple has developed an unconventional 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?