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One man winds up with the purrfect woman after the stray cat he took in suddenly transforms into a human!

Nice guy grocery manager Iori is stuck in a rut. He’s overworked, underappreciated, and still grieving the disappearance of his beloved cat. But one fateful night, after rescuing a stray on his way home, Iori wakes up to a shock: the stray is gone, and in its place is a feisty, naked girl! Pushy, adorable, and oddly familiar, Mii-chan isn’t just crashing at Iori’s place—she’s hiding a big secret. As Mii-chan paws at his heart, Iori’s life is about to take a purr-fectly unpredictable turn!

200 pages, Paperback

First published September 19, 2023

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34 people want to read

About the author

Waka Takase

25 books2 followers
Japanese: 高瀬わか
Chinese: 高瀨若

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5 stars
16 (40%)
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14 (35%)
3 stars
8 (20%)
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2 (5%)
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Displaying 1 - 7 of 7 reviews
Profile Image for Mark.
2,816 reviews274 followers
April 19, 2025
Let’s just get the old age gap warning out of the way, as your magical cat girl is seventeen and Iori is nearly thirty. He knows this is pretty iffy and is just as likely to ignore it (especially with the nonsense plot twist at the end of the volume that pushes things even further) given how the volume progresses.

Oh, but, dang it, I really enjoyed this. Sometimes I just want something light and goofy and this is goofy in just the right ways, using its silly cat-becomes-a-girl-during-the-day premise to be entirely too fun. It’s certainly not half as lascivious as the cover suggests; though it does have some near-nudity it is of a more playful sort.

You would not be wrong to raise your eyebrows in alarm when Mio decides that Iori is now her owner, but she is a cat after all and that means that she owns him, not the other way around. Anybody who has been around a cat for five seconds will recognize this as correct.

Taking your standard cute manga girl, and make no mistake that Mio’s design is genki as all get out, and having her lean hard into various cat behaviours is a recipe for a good time. Mio may not be all-cultural, but she’s a cat girl through and through.

She mostly ignores Iori, doesn’t help out, sleeps all day, eats his food, only engages when she feels like it, then slips out at night and returns by morning. No hairballs or knocking things off ledges yet, but it’s still the first volume and all.

Iori is there to be the harried male who is too passive at life and work and gets walked over by everybody. Including Mio, but she’s doing it because she likes him and does stick up for him. When she’s not being possessive.

The other big thing about Iori is that he loves cats, so he’s actually way more fond of Mio’s utterly adorable cat form more than her human side. This constant battle with his affection for cat-Mio versus trying to extricate his life from girl-Mio makes things a bit more interesting than it would be otherwise.

Mio’s high wattage (and generally useless) self is the real sell here, as usually happens. She’s an absolute ball of energy when she isn’t asleep on the couch. Iori is there to try not to stare too hard at her lovingly rendered form and to await the arrival of even more cats in the future.

It’s cute. Mio reminds me a lot of Kitagawa from My Dress-Up Darling if she gave up cosplay and just slept on Gojo’s pillow all day. I definitely don’t hate that it’s trying to be a little different with its approach and she carries a lot of it.

This is definitely a well-worn trope - here comes the wacky girl and her family and also she causes more trouble by trying to help and also also there are sparks quietly flying. This really did enough with it for my mind and I hope that final reveal doesn’t scuttle it next volume.

3.5 stars - fun enough and if you can get over that age gap and also like cats, it’s certainly likely to leave you feline good. I’ll see myself out.
Profile Image for Rebecca.
1,449 reviews85 followers
April 23, 2025
I'm glad I took a chance on this. Mii-Chan is cute and lively, and Iori is a genuinely good guy. I don't know what direction their relationship will take; there's a significant age gap that has Iori keeping Mii-Chan at a distance (at least while she's in cat form), but it's not hard to see this going in a romantic direction eventually.

Mii-Chan is truly the best part though. She's just such a cat in both of her forms. Anyone who has had the privilege, as she calls it, to own a cat will see the ways she embodies every cat, from the little things such as the way she stretches, to the demands for praise. Her boundaries are not great, but anyone who has had a cat climb on them at the most inconvenient time, will know this behavior well.
Profile Image for Greg(ory).
25 reviews6 followers
April 21, 2025
I’m a sucker for cute anime cat-girls, but Mii-chan isn’t exactly what I was expecting.

In this series by Waka Takase, our protagonist Natsume-kun, works in a supermarket, where he gets pushed around by the ladies at his job; but, he’s generally a good guy who’ll pitch in and help out when things get tough – as a result, he’s always exhausted and burnt out.

One day, on his way home, he takes in a stray black cat for the night, even though his building doesn’t allow pets. When he wakes up in the morning, he finds the cat’s gone, but an extremely beautiful (buck-naked) black-haired girl is sleeping in his bed.

As it turns out, Mii-chan, is a seventeen year old runaway cat/girl, who is a human during the day, but turns into a cat at night. The details have yet to be really explained; is it a curse? Is it just in her nature? Not too sure. Will I read on to find out more? Probably.

I really enjoyed the book for the first 90% of the volume. The interactions between the two main characters are pretty funy. Mii-chan’s cute, and the MC dude’s not annoying (honestly the most important thing in any of the manga where the MC is meant to be a self-insert protag). It’s also really funny how he’s got such a soft spot for Mii-chan as a cat, but is really hard on her in her human form.

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Toward the end of the volume, Mii-chan has a conversation with another Cat/Girl, and in that conversation, it’s revealed that one aspect of their “affliction” is that unless they have sex with a guy before they turn 18 they’ll eventually be stuck in their Cat form forever…
I’m generally not too stuck up about stuff like this, but this seemed so contrived and deliberate I got a bit annoyed – especially since the MC is in his early twenties; maybe the age-gap tension will turn into a plot point. I guess it’s always possible Mii-chan chooses to stay with Natsume-kun, but in her cat form, since he’s pretty obviously got a thing for cats. Who knows? I think that’d be kind of a funny possibility. I’m interested enough to see how it plays out that I’ll probably pick up the rest as it comes out. So far, Japan has 3-ish volumes worth of chapters and the manga is still ongoing.
Profile Image for Ani Martinez.
338 reviews
January 17, 2026
Story follows Iori a young man who seems to have grown quite fond of a black called he named Mii-chan, who's a cat by night & a beautiful girl by day.

Overall: I actually enjoyed the plot more than I thought I would ngl - the only issues would be lookin past the age-gap & that the ending felt very rushed but oh well 🤷🏻‍♂️ Also, this beginning of this story felt very similar to "Lovely Leapin' Lizards [きみはかわいいれぷたいる]" by Mato Yamamoto.

If you liked the art style, are ok with an age-gap & looking for romance, and want to check out more from this author then I suggest reading: "My Older Sister's Friend [ 姉のともだち ]"
Profile Image for Ray Rappisi.
378 reviews4 followers
August 24, 2025
I’m a huge black cat lover and Mii-chan is a black cat/girl. Could I ask for anything more? I like Iori as the MC, he’s not your typical mook, he’s a tad cynical but like me he loves black cats. I like the cat world this manga is building. The age gap could be an issue, but if it’s in cat years then it’s not a problem; we will see. Character designs are great, art is clean and easy to read. An excellent first volume and looking forward to more.
Profile Image for Kat.
1,634 reviews16 followers
July 26, 2025
this would be a solid four stars if not for that twist at the end about needing to have sex as a minor, like WHAT lol. I could overlook her being 17 because Iori is so overly clear about 1) wanting distance/setting boundaries and 2) viewing her mostly as a cat/kid. and the rest of this was actually pretty funny and cute!!
This entire review has been hidden because of spoilers.
Displaying 1 - 7 of 7 reviews

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