1 - 20 of 307 Works in Alpha Oikawa Tooru
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Kageyama grows up genderless, unlike his middle school peers at Kitagawa Daiichi, who all develop their secondary genders and form a pack without him. His parents worry, even writing to the school, but eventually leave him to live alone. After his grandfather dies, Kageyama becomes cold and distant, throwing himself into volleyball. His teammates stop supporting him, and he leaves middle school bitter, swearing to never look back.
At Karasuno, things are different. Though it’s hard at first, he slowly finds acceptance with his new teammates. Eventually, they decide to make their bond official by forming a pack — something rare and deeply meaningful. But when the paperwork asks him to choose a gender — alpha, beta, or omega — Kageyama doesn’t know what he truly is. Confused and insecure, he checks omega.
- Language:
- English
- Words:
- 886
- Chapters:
- 1/1
- Kudos:
- 10
- Hits:
- 137
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Tooru and Hajime come back home to their pregnant husband, Tobio, in a surprising state.
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you're not good for me (but baby, i want you) by lovelycherryblondelocks
Fandoms: Haikyuu!!
01 Sep 2025
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“We should go to a party.”
The united disagreement groans. Coupled with multiple “I should’ve known” and “You never have a bright idea, do you?”
“Come on guys!” Shouyou stomps his foot petulantly. “This is what Tobio needs! A release! He can’t stay cooped up in his poor excuse of a cave and spend the rest of his youth brooding. Not over a man who clearly doesn’t deserve him!”
In his attempt to get over a situationship that's kept him yearning, Tobio makes a string of impulsive choices.
It leads him back to the start — although, less confused.
Series
- Part 1 of party like it's 2012
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Tobio and his half-brother Tooru’s relationship is complicated. In the hands of Kitagawa Daiichi’s Clan Leader, a multitude of problems continued to arise and Tobio could only watch, as Tooru defied every instruction set by their Father, Clan Leader of Kitagawa Daiichi, in the pursuit of his freedom and love.
As Tobio found himself slowly falling into a similar situation his brother was in, Tobio seeked answers.
[HEAVILY EDITED - initially: a choice between the mountains and the lake]
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Omegaverse Haikyuu kageyama Tobio x Oikawa Tooru x iwaizumi Hajime x Kunimi Akira x Kindaichi Yuutaro x Hanamaki takahiro x Matsukawa Issei
Alpha Matsukawa
Alpha hanamaki
Alpha Oikawa
Alpha Iwaizumi
Beta Kunimi
Beta Kindaichi
Omega Kageyama
Secret relationship
Future au -
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Kageyama never thought he would end up in this situation. Used from the love of his Life, kicked out of his home and Volleyball taken away from him.
Broken, used and left alone, he tried to pick up his Life again. But nothing was easy with a child at his tail. He was determined to still try it.
When he thought he was successful, his past catches up to him again and his Life was thrown upside down again. Will he manage the Rollercoaster of his Life again? -
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Hinata’s voice is small. “…I don’t know what to do.”
It’s the defeat in his tone, that acknowledgment that he can’t win and hide this on his own—
It causes Oikawa’s chest to pang with sympathy.
“…” Oikawa swallows hard, glancing at the bracelet Hinata always wears, only now realizing those are the scent blockers he should’ve noticed. Betas don’t need scent blockers in the first place because of how subtle their scents are.
Then he exhales a low breath, and he moves his eyes to meet Hinata’s again. “Do you trust me?”
Or: An omega verse, college Oihina AU where Oikawa discovers that Hinata lied about being a 'beta', and what comes after can only be described as...messy. Literally and figuratively.
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Risking it in his confusion, Iwaizumi tilted his head to the side to squint up at the Caucasian looking alpha male in his mid to late thirties looking back at him. “What?”
“Your pregnancy. You’re about two months in? Have you had any bleeding recently? When was the last time you saw your doctor? Did you inform him you were sick? For how long?”
Thankfully, Akaashi was there to inform the obviously not good at his job doctor that Iwaizumi couldn’t be pregnant. He was a beta male.
“And I’m an unmated, currently in his prime alpha that also happens to be a pediatric surgeon. I know a pregnant omega when I smell one."
So...turns out Iwaizumi is now an omega, not a beta anymore. He knew he had the genes that made that possible, but he never thought it would happen to him.
Also...he and friends with benefits bestie Oikawa apparently came away from the Paris Olympics with an unexpected souvenir. A living one. Holy Shit!
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the mysterious case of oikawa's missing practice shirt (and other lost items) by singlevi
Fandoms: Haikyuu!!
22 Aug 2025
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Lately, Oikawa's clothes have been going missing, and he has a growing suspicion of who it might be.
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Kageyama Tobio was born in a Shinto shrine in Kyoto, raised in Sendai, and educated in Tokyo. For his entire life, he’d rejected being locked into any sort of constraining label: traditional omega, modern athlete, national treasure. He could be a top professional athlete and still visit his family’s shrine every summer. He could remain unmarried and childless but still embrace being an omega. He could love and hate his overbearing family at the same time. It had taken him a very long time to accept himself, but he’d succeeded in the end.
When Oikawa Tooru re-enters his life at the Tokyo Olympics, he brings all the insecurity and unstable misery of Tobio’s teenage years back with him.
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Kagura-uta: “god-entertainment-song”Series
- Part 1 of shrine song
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Tooru read the letter twice, his anger rising with each word. Snarling, he threw the crumpled paper into the fire, glaring at the ashes it created. “That cocky little shit.”
Daichi hummed, following the alpha’s movements with his eyes. “What’s the plan?”
The gathered tribal heads waited patiently for their appointed leader to speak, none of them daring to make a sound and risk incurring his wrath.
“Plan? He stole my omega. And I will not rest until I have his head mounted on my wall.”
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“Nn—nnnh Iwa-chan, are you hh–haah fuck, trying to get me pregnant? I’m an alpha just like you~ How scandalous~” He tries to sing the words, as much hard as it is. With drool leaking out of his mouth, eyes in a blur of lust and want, Oikawa Tooru still manages to be his cocky self.
Or, Alpha Oikawa gets railed by Alpha Iwaizumi. Knotting ensues.
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#iwaoiweek2025 - day 1: good luck kiss
“It's not enough you see, to leave it to chance
This is a rare circumstance
Get up and make it your chance."
– Amplify by Ren ZottoThe fic you will read in very short sentences:
Tooru and Hajime meet up before game starts. They kiss. Kiss does magic. Somehow. This happens three times. -
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Tooru carves out a hole inside him, as always. Only this time it’s meaner and rougher than usual. When he finishes and the door clicks shut and the only sound is the muffled dance music from the club, Tetsurou sinks to the floor and lets his back thud painfully against the side of the desk. He lights a cigarette, smoke alarm be damned, and instead of showering or finishing up behind the bar, he sits and waits for it to stop hurting.
𓆗
(Lovesick Tetsurou can't stand to be nothing more than a nighttime distraction for Kumicho Oikawa anymore, so he goes out to find a new alpha to dote on him - though the outcome has some terrible - and not-so terrible - consequences for him and Tooru)
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Spreading my Alpha x Alpha agenda.
Oikawa cannot stand his rival slacking off, so fixes it.UshiOi Week Day 1 -- Prompt's Omegaverse and Begging
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Jadea, desvergonzado y con furor, después mira a su Hajime, con sus mejillas rojas y su boca medio abierta por la satisfacción. Tooru no se atreve a brindarle fe a la razón, incluso si conecta más con el análisis, pero jamás pensó que le permitiría tal libertad a la perversión.
Nunca imaginó que llegaría gemir con tanta desesperación la palabra “mami”, sin embargo ahí estaba mamá. Ahí estaba Hajime. Grande, hinchado y hermoso con su bebé, con la expresión más divina del mundo y Tooru no deja de pensar en esos ojos vidriosos, en el temblor en las manos de Iwaizumi cuando le recuerda la dicha de ser madre.
Series
- Part 2 of oiiwa y la pelusa doméstica
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It was just your luck that everything seemed to get worse for you after your ex-alpha packed his bags and left you with absolutely nothing. Lucky for you, another alpha seems quite interested in taking that empty spot next to you.
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Tooru knew he needed you. So, he decided to get you. No matter what it took, no matter when it happened. If blood had to be shed in the process, then so be it.
Series
- Part 1 of Insatiable
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In which Iwaizumi Hajime's illiteracy puts him into a situation where he is expected to serve the Emperor- not in the way he expected and eventually finds himself falling for the Emperor.
Except he is just a concubine serving the Emperor in Seijoh, a palace with dirty secrets kept away from the public eye.
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Iwaizumi's attention was caught by a pile of fabric down by the end of his bed.
Of course, it was Oikawa’s – one of his sweatshirts this time, with ‘Area 53’ on the front in bold letters and a UFO in the background. For a moment, he considered running it across the road back to Oikawa, but something made him pause.
Without permission, his eyes glanced over at the hoodie from a few nights ago, still on the floor where he left it. Oikawa must not have noticed it, or he definitely would have taken it back with him, calling Iwaizumi a thief all the while. He glanced back at the sweatshirt in his hands, his mouth suddenly dry.
He could take them both back straight away. Forget any thoughts of what he could do otherwise.
Fuck it.
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Entonces, cuando Iwaizumi aparece un día en la entrada de su casa, pálido y con el ceño nerviosamente fruncido, Oikawa parece preocupado durante un instante.
Luego Hajime habla sobre bebés, paternidad y cómo una prueba de embarazo positiva lo tenía ansioso como la mierda. Lo que podría ser un conjunto de eventos progresivamente terribles considerando que hacía unos días habían perdido su oportunidad de participar en las nacionales. Sin embargo, la impertinencia recorre cada una de las sílabas que escapan de la boca húmeda del alfa.
—Mierda, Hajime. Eso está caliente…
Series
- Part 1 of oiiwa y la pelusa doméstica