Being in the same class with the school idol and pretending not to be into her is hard enough, but it's even tougher to swap bodies with her and discover that she's half-succubus in the process! Kimiiro Days: The Color of Your Life depicts the many hijinks that can ensue in body and gender swap stories like this one, and many others.

Kimiiro Days: The Color of Your Life has story and art by Taniguchisan. English translation is done by UmeMochi with and lettering by Vadim K.. Published by J18 (January 7, 2026). Rated M.

Content Warning:Dubcon, Noncon

Lucas DeRuyter
Rating:

Taniguchisan's Kimiiro Days: The Color of Your Life is one of the most cishet and vanilla gender bender hentai I've ever read. This collection is cover to cover stories about dudes taking over women's bodies in one form or another so that they can have a bunch of sex, but at no point does the work feel like it's engaging with ideas around gender norms and taboos that make this genre appealing. While there's just enough thematic meat in these stories to potentially “awaken something” in a less examined reader, Kimiiro Days is ultimately a proficient but rote work that doesn't understand its subject matter well enough to know what makes it appealing.

Every story in this tome features a body swap scenario where a man now in a woman's body uses the opportunity to have sex with themselves, other fem presenting people, or the women now inhabiting their masc-coded former bodies. Out of the gate, the politics of this work are weird and disjointed. Kimiiro Days is literally a celebration of feminine bodies and how good they look while participating in sexual revelry, but almost all women in this work come off as prudish until they're possessed by a man. This leaves me with the impression that this work believes that men know how to be women better than women do, and that's a strange takeaway even for a hentai comic that features a young man being able to transform into whichever lewd cosplayers he takes a picture of.

On a more technical level, the panel layouts of Kimiiro Days feel overly busy, while the character designs hedge the other way and feel basic or even generic. Similarly, the translation feels a little uninspired, with terms like “simp” being thrown around so often that I was begging for a synonym before the end of the second chapter. Furthermore, even as the macguffins through which the body swaps occur are novel, and in some cases inspired, in each story; the sex acts in each chapter are all fairly similar. This made it feel like I was more or less reading a different version of the same story over and over again throughout this work.

Kimiiro Days isn't so bad that I would recommend that people skip it outright, but it didn't inspire enough enthusiasm for me to recommend that anyone read it either. Maybe people with a hardcore gender or body swap kink will find something to love in here, but I've read enough of these kinds of works to know that there are better titles under this umbrella out there.

Bolts
Rating:

You can tell the author of this book really had a body swap fetish, because they go all in on fully building up that trope in this book. At first I thought this book was just going to be one big overarching story because that's extensively what half of it is. It focuses on a young man who ends up accidentally switching bodies with a girl who is secretly a succubus. He gives into not only the temptation of being horny boy in a girl's body, but he also ends up giving into the succubus instinct and ends up being the villain of the story. I was actually surprised at how far the narrative pushed this character in an almost deranged direction with every sex scene, almost building upon this idea that they were a dangerous force that needed to be stopped. What starts as a situation between two characters eventually turns into a larger problem that actually plays with the body swap trope in a way that feels very dark. While the sex scenes were stimulating in their presentation, there was also this underlying tragedy to the situation. There was legit one sex scene in this book that actually had me feel really terrible for one of the characters because of the psychological and emotional damage that happened.

So how does the author choose to resolve this major cascading issue? They don't. The story stops in the middle and then the rest of the book is just an anthology of similar styled stories in the same setting. It really feels like the author just didn't know how they wanted to wrap up that story, so they didn't and just decided to do a bunch of other body swap stories that progressively made less sense as time went by. A lot of this book relies on the fantastical in order to excuse the body swap trope, but I can sooner understand how a succubus can swap bodies with somebody versus random students just somehow knowing how to Astral Project themselves out of their body. It really did feel like the book just stopped caring more and more as it went on.

Maybe I feel this way because I felt like the first half of the book was going really strong and I was getting genuine investment out of it. If you're a fan of body swap stories, especially if you're a fan of dominant women and gangbang group sex, this definitely checks all of those boxes. But I guess that's the disappointing thing about this book in that it does such a good job of establishing all of these different corners of entertainment, only for it to just sort of drop it all and move on. Characters get dropped, plot points get dropped and what the rest of the book has to offer just is it nearly as interesting. So check this out if these are the types of fetishes that you're interested in but be careful not to get as invested as I did.