The days of the protagonist of the story are numbered. He has no contact with his relatives, he lives alone, his only company is his cat named Cabbage, and he is certainly unprepared when the doctor informs him that he only has a few months left.

But before he can set about doing everything he absolutely wants to do, the Devil appears in front of him and makes a special offer: in exchange for one thing disappearing from the world, the narrator can live one day longer.
And so begins a very bizarre week...

Kawamura's multiple award-winning book was on the most important bestseller lists for months, sold more than one million copies worldwide, and was published in thirty-two countries. Its theme is the human journey itself; the losses we inevitably suffer. It reminds us why we need to hold our loved ones close to us and how to discover what really matters in life.