I want to say that 99% of the fics here are on FF.net for I have only recently discovered the wonders of AO3, and I still didn’t dig deep in there to find all the HitsuKarin goodies.
That being said, I will put the list under the cut because this will be one very long post. So, I hope you all enjoy it!
one-shots
A Constant Fascination, by back-in-a-bit. — 'Colour me blood red passionately.' Hitsugaya makes it his personal mission to get Karin to blush. Pity it's easier said than done. In fact, it might just take him a lifetime. [rated T]
A Fall in the Fall, by MeteorLeopard. — This was ridiculous! There she was, just looking at the fish, and the next thing she knows, she's up in a tree being held against her will! And it's all his fault! [rated T]
a little suffering is good for the soul, by the milliner’s rook. — Future fic. If there are stupider ways to get courted, Karin can't think of them. [rated K+]
A Woman Scorned, by Glowing Blue. — The twisted fairy tale of Karin finding her own invite to the ball, though she's hardly looking for a Prince Charming. [rated T]
but leave the soul alone, by the milliner’s rook. — AU. Death, it's catching. Or: the one where Toushirou and Karin share night shifts at the hospital. And coffee. Terrible, terrible coffee. [rated K+]
Collection, by ichilover3. — A drabble/oneshot dump. Shenanigans, silliness, and sexy-times abound. Also alliteration, apparently. [rated M]
crawl into your shadow, by the milliner’s rook. — AU. There's a witch in this sleepy little village now that goes by the name of Karin, but nothing has changed since she's arrived. Not really. [rated T]
Delirous, by carved in the sand. — Matsumoto finds her captain to be a lovestruck teenage boy. [rated T]
duckling theory, by the milliner’s rook. — The first thing Karin notices is watermelon. Looking back, maybe it should have been startling green eyes. [rated K]
For You, by Glowing Blue. — Death had never been the paradise everyone wished it to be. But then they found each other. [rated T, two-shot.]
frostbitten, by the milliner’s rook. — Set during the time skip. The winter they meet is unkind with snow. [rated K+]
Frozen Moments, by CrazyAce'n'PokerFace. — 101 drabbles/one-shots that give a glimpse into Toushirou and Karin's life together. A love story told in snapshots. [rated K+]
funny valentine, by SebonzaMitsuki27. — I'll be yours if you'll be mine. [rated K+]
humour me, by SebonzaMitsuki27. — True love's kiss. That ought to do it. [rated K+]
i’m high on believing, by the milliner's rook. — For the record, he prefers his plain black shoes to her fancy red sneakers. [rated K+]
ice breaker, by SebonzaMitsuki27. — AU. There are better ways to get found out than making out in a closet and tumbling onto the ground. [rated T]
if my heart was a compass you’d be north, by SebonzaMitsuki27. — Future fic. Give me a reason to believe. [rated K+]
In Every Season, by Adobo-chan. — A collection of HitsuKarin oneshots. [rated T]
In the Dark, by ichilover3. — It really wasn't anyone else's business. She should be allowed to fornicate with midgets if she wanted to. [rated T]
innocent guilt, by SebonzaMitsuki27. — AU. Oh, I know! You're a tramp with wings! [rated K+]
Juxtaposition, by Lady Azar de Tameran. — Something within Hitsugaya Toushirou thinks that he may have met his match. [rated T]
keep me in your pocket, by SebonzaMitsuki27. — Set during the timeskip. Don't stay out of touch, okay? [rated K+]
Kuchiki Rukia, the Glorified Courier, by MeteorLeopard. — Delivering super-top-secret messages between dimensions is tough work; believe me, I know. If it weren't such a rewarding experience I'd downright refuse to play the messenger. Honestly. [rated K+]
liliputians, by SebonzaMitsuki27. — Future fic. It's alright, kid. I'm short too. [rated K+]
Lovely Complex, by Unknown lazy ass. — She slyly grinned, “Wow, you really are head over heels for me, aren’t you Toushirou?” [rated K+]
Momo knows Best, by MeteorLeopard. — Sometimes having a meddling older sister... sucks. [rated T]
of halos and wings, by SebonzaMitsuki27. — Future fic. He had betrayed Hinamori with nothing but his heart. [rated T]
Old Haunts, by the milliner's rook. — Future fic. You were just gone, Toushirou, what was I to think? I thought—I thought you'd come back, and you did, twenty years too late. [rated T]
Peeping Tom, by Glowing Blue. — The love story of Hitsugaya and Karin, as seen from open windows and heard through thin walls. "Hisagi's eyes had a tendency to stray." AU. [rated T]
phantasmagoria, by SebonzaMitsuki27. — Flickering through black and white, they find their perfect shade of grey. [rated K+, two-shot.]
put down your sword and crown, by the milliner's rook. — AU. When her old man dies to save Ichi-nii's life, everything changes. Days after the funeral, the word Quincy is spoken for the first time, and at five years old, Karin becomes defined by it. [rated K+]
Red, The Colour of Despair, by the milliner's rook. — It was strange how much difference one colour could make. [rated K+]
Revenants, by carved in the sand. — Hitsugaya ponders the ghosts that haunt the girl he still loves. [rated T]
Sports and Sex are Universal (but never the twain should meet), by back-in-a-bit. — Toushirou gives Karin a flat look. "I'm not high-fiving you over sex," he says. [rated M]
Subtle, by nublados. — Toshiro comments on the subtlety that is Karin Kurosaki. [rated K+]
The Art of Asking, by Felix02. — He should have known that her father wouldn't be able to keep a secret, especially from one of his daughters. [rated T]
The Art Of Getting By, by the milliner's rook. — AU. There's some difficulty between juggling flirting, killing Hollows and getting to class on time with the hottest guy in high school, but Karin's certain she'll get the hang of it eventually. [rated T]
The Staircase not Taken, by MeteorLeopard. — Perhaps it was a good thing that the stairs were destroyed, her brother acting demented and a violent fight going on without her just upstairs. After all, the visitor who happened to drop by was worth the wait. [rated T]
the winter sun smiled for things to come in spring, by the milliner's rook. — What is it with you! You're either too young or too old! What the hell! [rated T, two-shots.]
Urahara's Lawn Mowing Service, by MeteorLeopard. — Incorrect phone numbers are a messy business. Even messier though is the business that happens after said incorrect phone call. "Fine, but I bet your girlfriend didn't call back because your lawn needs to be mowed." [rated T]
velocity, by SebonzaMitsuki27. — Aim for the goal, and don't look back, no matter what. [rated T]
where angels fear to tread, by SebonzaMitsuki27. — They belong in hell. [rated K]
You Taste Like Birthday, You Look Like New Year, by the milliner's rook. — Future fic. She likes his hands, Toushirou notices. Loves them, in fact. [rated M]
complete
lune, by SebonzaMitsuki27. — AU. Me and you and moonlight shivers. [[rated T] other main pairings are ByakuyaHisana, ShinjiHiyori and UlquiorraNel, so beware that HitsuKarin is not the only focus in this one.]
Waterlogged, Wind-chapped, and Sun-bleached. — They grow up together, and the slow progression of their relationship shapes their world. AU. [rated T]
Wendybird Chronicles, by the milliner's rook. — She wonders if they ever had a chance. If they might have missed it, somehow. [rated K+]
on going
Wrong Number, by Lunatasha. — Unknown (10:22): So! I just read all of the conversations I had last night while I was out drunk and thoroughly embarrassing myself and please let me apologise for bothering you (especially as I think you were working if you were in your office?) last night. I mean in hindsight I probably should have stopped messaging you as soon as it was clear you weren't who I was looking for, but drunk me apparently hates sober me so yeah, I'm sorry. That being said thank you again for helping me out even though I must have been bothering you, I appreciate it. [rated T]
Only in Dreams, by TullyBlue. — Brother, she had called him, but he spent the entire meal acting like she was a ghost. Eating with the twins, he can’t even imagine being that cold to his sisters. Yuzu’s laughter brightens his day and that admiring glint in Karin’s eye, that he only catches every once in a while, means the world to him. The so-called brother in his dreams makes Ichigo’s skin crawl. Everything else, though, he wants to see more of, to know more about, to understand. Old, wood floors, a spacious room, flowing black robes, and those swords... [[rated T] other main pairings are IchigoRukia, UryuuChad, GanjuHanatarou, so beware that HitsuKarin is not the only focus in this one.]
abandoned or on permanent hiatus, probably won’t ever post a new chapter again
Blizzard Blues, by the milliner's rook. — Future fic. I heard your brother had an eight pack, Captain Hitsugaya! That he was shredded! [rated T]
Catalyst, by Etiena. — With captain-level shinigami in her family, it is no surprise that Kurosaki Karin has potential. But it isn't family which triggers her change. Instead, a chance encounter with a young shinigami captain leads to startling revelations. [rated K+]
Go Against the Grain, by Adobo-chan. — Old law deems that only a son may become the Kurosaki House's next leader. Born from this ancient tradition, a tragic betrayal and her mother's sacrifice, Karin is brought up as Kurosaki Kazuto, the 29th head of the family. [rated T]
oh sinful rose, by the milliner's rook. — AU. Five years after the monarchy is overthrown, a noble finds a forgotten princess in chains. DISCONTINUED. [rated T]
Quandary, by Glowing Blue. — Funnily enough, meeting such a spirited single mother was actually part of his job description. AU. [rated T] (I love this one so much!)
Roommate For Sale, by SavageTrickster. — AU. There are many things in life that she didn't know, but the one thing Kurosaki Karin was certain of is that her overprotective brother is going to blow his top when he meets her new roommate.
