I've finished this slim, quietly devastating novel about a thirty-year-old postman who learns he has a brain tumor and only months to live. That same night, a devil who looks exactly like him shows up with an offer: for every day of extra life he wants, one thing must vanish from the world—permanently, and from everyone's memory, not just his own. Phones go first, then movies, then clocks. Each disappearance ripples through his relationships in ways he doesn't expect, forcing him to reckon with what he's actually trading away.
Themes I Noticed
The Devil's Bargain as a Thought Experiment
- Each object's removal is really a removal of the relationships built around it
- Losing phones costs him his last real conversation with an ex-girlfriend
- The bargain reframes mortality as a series of small, deliberate subtractions rather than one sudden end
What Cats Stand In For
- The devil's final proposed trade—the cat, his only companion—is the one he can't bring himself to make
- The cat becomes a stand-in for the people he loves rather than a pet in its own right
- Realizing that erasing something to survive it can cost more than the extra time is worth
Family, Regret, and Time Not Spent
- Flashbacks to his estranged father, a clockmaker, recontextualize the earlier disappearance of clocks
- Regret arrives less as guilt and more as a catalog of ordinary days he didn't notice at the time
- The book's central question isn't how to add days, but how to spend the ones already given
Memorable Quotes
"If cats disappeared from the world, first the mice would probably be pleased."
"Living the way I live now is nothing more than sorting out what to leave behind."
"We think it's all about what we gain in life, but it's what we choose to give up that defines us."
Kawamura, better known for his screenwriting, gives the novel a cinematic economy—short chapters, plain prose, and a premise that could easily tip into gimmick but never does. What keeps it grounded is how mundane the vanishing objects are and how disproportionate their emotional cost turns out to be; the book isn't really about phones or movies or clocks, it's about the people who were only ever reachable through them. It's a fast read that lands harder than its length suggests, closer in spirit to a fable than a conventional novel, and it earns its final, wordless image of a man simply sitting with his cat.