Did you know that the dog crawls into Ise !? The work of God or the work of a person, or a bill falling from heaven, is a signal that invites people to Ise! A trip to Ise that everyone dreams of. Everyone visits Ise. Based on an old japanese legend about Okage Inu

Each morning, the Professor and the Housekeeper are introduced to one another. The Professor may not remember what he had for breakfast, but his mind is still alive with elegant mathematical equations from the past. He devises clever math riddles—based on her shoe size or her birthday—and the numbers reveal a sheltering and poetic world to both the Housekeeper and her ten-year-old son. With each new equation, the three lost souls forge an affection more mysterious than imaginary numbers, and a bond that runs deeper than memory. (Source: Penguin Books)