Red Blood Cell, White Blood Cell (Neutrophil), and their team put on their cat ears as they work, day and night, to fight invaders big and small to make sure our feline friends are happy, healthy, and purring! Explore the action taking place inside a cat's body, in Cells at Work! style, while also seeing the perspective of the humans who provide a home and tender, loving care.

Cells at Work! Cat has a story by Choco Aozora and art by Meku Kaire. English translation is done by Stephen Paul and lettering by Paige Pumphrey. Published by Kodansha Comics (September 22, 2026). Rated T.

Rebecca Silverman
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If ever there was a manga series that allowed for a million permutations, it'd be Cells at Work! – and judging from the fact that there are two different iterations in this guide, it seems someone is determined to make good on it. This particular variation on the theme of anthropomorphized cells takes place in the body of a cat, and it operates basically like the others in the franchise: we learn different pieces about how a body, in this case feline, functions and the roles different cells play.

How interesting you find this is likely to depend on how much you like cats, and possibly how much you already know about them. It's a very basic veterinary crash course, with this volume covering nail trimming, flea and tick prevention, and two iterations of that time-honored feline tradition, barfing. Given how often cats vomit, I can't blame the book for devoting two chapters to different causes, and it is important to know how overeating puke differs from horking up a hairball (preferably on a bed or the rug). One of the pieces I particularly like here is that Mike, the cat in question, is a former stray, and her cells note the various changes that her move from street cat to pampered pet make. In the first vomit chapter, they discuss how now she gets regular food at specific times, whereas before she just ate whenever she could, and how that – and her person's good intentions – are leading to overeating.

As you might guess, there's some solid advice for cat owners in here. Hinata, who took Mike off the street, spends a lot of time running back and forth to the vet to learn about what she's doing wrong, and he gently explains the basics of responsible cat parenting. The cells provide scientific reasons while the vet puts it in terms teenage Hinata can understand clearly, while also clearing up a few things the cells themselves, having previously lived in a stray body, don't fully understand, like liquid parasite protection and clotting powder on a nail cut too short. (There is a tick in this book, if that grosses you out.) It works well, particularly for a younger audience, which this appears to be geared towards.

The downside is that if you're already tired of this franchise's schtick, just shifting to a cat body isn't going to revive your flagging interest. The basic format is the same, even down to the way that we get outside the body intermittently (which Cells at Work! Lady also did). But the cat is cute, the cat tails and ears on the cells are adorable, and it does teach you a decent amount about cats. If you've ever wondered how coming indoors changed things for your kitties on a cellular level, you'll probably find something to enjoy.

Bolts
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It is genuinely impressive how long the Cells at Work! franchise has been going on, but considering its premise, it does make sense how much mileage you can actually get out of this premise. Cells at Work! is a franchise that personifies different elements of the human body for the sake of telling anime-style stories with an educational angle. The original series took place within a human body, and various spinoffs have been tackling that setup from different angles, with this one just taking place inside of a cat. While this volume still falls into a lot of the same narrative trappings as the other Cells at Work! spinoffs, like the characters being very one-dimensional, the series still does a great job of presenting different real-world afflictions in creative ways.

This series in particular is taking place inside the body of a newly domesticated street cat, which is interesting because the volume almost works as a guide on feline care. There are chapters about hairballs, there's a chapter about dealing with ticks, and there are even chapters about how the cat's brain works. In a lot of ways, this book can be used as a means of educating people who are new to taking care of cats, which is actually one of the main framing devices for the story. Every chapter has little notes and excerpts that explain what parts of the cat are or how different external factors can affect their health. I'm also a sucker for the fact that all of the personified body parts have cat ears because it really does give the series a bit more of a cute feel with the toned-down violence. If you've already experienced Cells at Work!, then I don't think there's anything here too radically different where you need to drop everything to go read, but if you were a fan of the franchise and are also a fan of cats, then this can be a fun read. If anything, it makes me curious about what other parts of the franchise and more installments will cover in the future.