Keishin Ukai - Tumblr Posts

bet you won’t do it

Pairing: Keishin Ukai x f!reader

Genre: fluff, slight angst?

Warnings: uh none?

Summary: You lose a bet to the one and only Keishin Ukai and you owe him >:)

Word Count: 4.8k words

A/N: This is for @crybabycrisis's collab!! To be honest I finished this fic like a week after I joined it but I only just now got around to posting it aflheafhak I had a lot of fun writing this!!

“Bet you won’t do it.”

“What?” Keishin asks with widened eyes as he turns to look at you, cigarette hanging from his lips and his brow raised high.

To be fair, you’re both drunk when this all conspires.

“I said ‘I bet you won’t do it,’ chicken,” you challenge, smirking at him Why are you doing this? You don’t want to do this.

His brow only raises higher, but now he’s looking at you with the confidence only a Ukai can pull off without looking arrogant. In other words, he looks hot. Then again, he always does. But especially right now. His hair is a little messy from his hands running through it and his head being tossed back from how hard he’s laughing. His pupils are dilated and his eyelids are heavy from the alcohol coursing through him. His lips—god, his lips; the same lips you’ve wanted to kiss since you were thirteen years old—are a little chapped, but they’re so red, and you just know they’d taste good. Well, right now they’d probably taste like the beer he’s been drinking for the past few hours. You’re sure that the devil himself made this cherry red apple and dropped it right in front of you, taunting that you can’t have it and that if you do, there will be dire consequences.

And consequences there would be if you were to give in to your desires and just kiss him stupid.

“Me? Chicken? Ha! Okay then. What do I need to do to prove you wrong?”

“Go over to that woman you’re drooling over and ask her out,” you reply with an even bigger smirk despite the fact that you’re dying a little inside. He’s been looking past you all night and when you finally looked, a woman was sitting there drinking alone.

“That all?” he asks smoothly, that same old spark in his eyes, the eyes you fell in love with, the eyes that are a dark brown like the chocolate he claims he’s not obsessed with. “What do I get if I win?”

“Well, what do you want?” you ask, taking a sip of your fifth drink. You wanted to tell him “Whatever you want from me,” and hope that he asks for a date, your hand in marriage, your body, literally anything. You know he would never though. You two have known each other for too long for him to suddenly start falling for you now.

You missed your chance a long time ago.

“Hm…” he hums before taking a drag of his cig, holding the smoke in for a moment before letting it out. His eyes shift this way and that to try and spot something to help him think of an answer. “How about you teach my boys after school every day?” This causes you to pause from taking another drink, it being your turn to let your eyes go wide.

“What? Teach them some manners since you clearly don’t have any?” you joke, averting your eyes as you toss your head back to take a drink, hoping he’ll drop it.

Of course, he doesn’t.

“(Y/n), you know what I meant.”

“Teach them volleyball? Why?”

He removes the cigarette from his mouth completely, clenching it between two fingers. “Because you’re just as good as me, a professional even! You were there right beside me when dad trained me and taught me everything I know! You were the one who helped me when I didn’t get something and made me better, made me the man I am today! You were there for all my games and I yours!” he says loudly, letting everyone sitting outside with you know that he’s drunk out of his mind.

“That doesn’t—I’m not—I can’t—”

“Yes, you can! (Y/n), I know how good you are. What happened to you was tragic, and I know you don’t like talking about it, but just think of how good it will feel to teach others how to play and help them grow better just like you did for me all those years ago. Think about how it’ll feel to step out onto that court again!”

Ah, your accident. It happened in your last year of high school. You were probably one of the best volley players in the country and, baby, you were going to go places. Well, that was until your very last game. You weren’t thinking straight because you were so nervous. Everything was riding on that game, on you winning that game, and you did something you shouldn’t have. And now you’re paying the price. Your heart broke that day and with you so torn up about it, it only made sense for Keishin, your best friend, to be heartbroken too. He was going to quit playing with you, but you told him that if he even thought about quitting volleyball again just because you couldn’t play anymore, you’d leave his life for good. That was enough of a threat to never make him speak of it again. He ended up playing throughout college and even after graduating, and you were there for every game cheering him on. You couldn’t have been more proud of him.

“(Y/n), c’mon. If I win this bet, you have to come in and teach them for a month,” he bargains, returning the shortened stick to his mouth and inhaling.

“A month?” you ask incredulously.

“Yup!” he replies, popping the last letter.

“And what will you be doing while I’m doing your job, oh great and wise one?” you ask with a playful roll of your eyes.

“I’ll be there cheering you on, of course,” he replies with a grin that almost blinds you. Wait, are you having a heart attack? Oh. No, that’s just your heart trying to fly out of your chest and into his hands. Stupid heart. He already has your love and more. He’s your everything.

“Fine. You have to ask her for her number,” you agree, placing your elbow onto the table and offering him your hand to shake. “But if I win, you have to…” you trail off, staring into his eyes with squinted ones. “You have to make me dinner,” you decide. Crap, does that sound like too much of a date? God, how much more obvious could you get?

“Dinner?” he asks, his brow reaching his hairline. “Is that all? Jeez, (Y/n), you’ve lost your touch,” he teases, finishing his cigarette before rubbing the end out into the tray in between you both.

“It’ll be more than just that,” you explain with an eye roll before freezing, realizing how that sounds. When you look up from your drink at him, you find his smirk has turned dark, the glint in his eyes having a new meaning now.

“Oh? You gonna show me a good time, (L/n)?” he purrs, winking at you. You grow flustered under his gaze and smooth words, quickly turning your head away to, hopefully, hide your reaction. It didn’t matter though since he knows you like the back of his hand. He could know how you’d react to that with his eyes closed.

“Shut up! I meant we’d also watch a movie or go for a walk, or something! You and I both know you can’t cook, so you never do it for me! I just figured I’d torture you with having to make me a full course meal!” you hiss out, hoping he’ll just let it go. He chuckles at you and leans back in his chair, taking a final swig of his drink before standing up.

“You’re on. No take backsies!” he shouts, pulling your hand in his—and how are his hands so warm?—as he gives you a firm handshake before leaving your table and sauntering over to the woman. You watch for about ten seconds before spinning back around in your seat, feeling something mean and vile slide through you. You’re such an idiot.

You’re chugging down the rest of your drink when he comes back over with a swagger in his step, letting you know before he’s even spoken that he’s won. You knew he’d win anyway. Who would ever say no to him?

“Done and done. I shall see you at campus on Monday.”

And your fate has been sealed.

You take a deep breath as you walk onto campus, heading the familiar way to the gym. You’ve been here a number of times, but never when his boys are here. You’ve always just met him outside to drop off some dinner for him or a new volleyball and went about your day.

And you’ve definitely never strutted up and tried to tell these boys how to play their sport.

God, what was Keishin thinking? These guys are going to eat you alive! You haven’t even played the dumb sport in eight years. You’re probably so rusty and you’ll just make a fool out of yourself.

When you reach the gym, you take another deep breath and shake out your hands before walking inside. You check your phone for the time when you see that practice is apparently in full swing. Were you late?

“Welcome to hell, soldier,” you hear a voice behind you, instantly recognizing the deep timbre. You spin around to find Keishin smiling at you, reminding you too much of a cat that’s finally caught his mouse.

“Haha,” you say sarcastically, shoving his chest and watching as he barely reacts to it. “How late am I?’ you ask.

“What?” he asks before looking over your shoulder to find the boys already on the floor and hitting the volleyball back and forth over the net. “Oh. We haven’t started yet.” Your brows go up in surprise at his words, turning to look over your shoulder at the boys again. Oh. “You’re actually just in time. C’mon, I’ll introduce you.”

And with that, he wraps his arm around your shoulder and leads you further inside the gym. You try to ignore how warm he is and how his cologne is starting to make your legs feel like jelly. “Alright!” he shouts once he’s pulled you two to a stop, making you jump, which causes him to chuckle down at you. He moves behind you and places his hands onto your shoulders, your back pressed to his chest. Oh god, oh god, oh god.

All the boys stop and turn to look at him, freezing upon spotting you. You look them all over, doing your best to put names to faces but not having much luck. You’ve been to a couple of their games but could never see their names on their jerseys from how far away you always end up sitting. It doesn’t help that you either have to leave before the game is over or can’t stick around for the afterparty because of your job. You always go out and celebrate with Keishin though. You like to listen to him brag about how good his boys played and what they need to work on.

“Boys, this is (L/n) (Y/n). She’ll be coming to practice every day to whip you boys in shape! She-”

“Is this your girlfriend, Coach Ukai?” one short boy with pointy hair asks, his hand raised high. Your face burns as hot as embers at the question, your gaze turning away to the side to avoid everyone’s eyes. Unbeknownst to you, a little color comes to Keishin’s cheeks too.

“That is none of your business,” he replies calmly. Oh, he didn’t say no. What are you saying, of course he didn’t indulge the poor boy. He just got a hot girl’s number two days ago, after all.

“Well, if she isn’t, you’re very stupid, sir. Respectfully,” another boy with a shaved head speaks up with his hand also raised, standing next to the boy who spoke up first. He looks at you with such a fond look, you swear you could see hearts in his eyes. This doesn’t help your flustered state at all.

“Respectfully, you can go run ten laps,” Keishin replies, an odd tone in his voice. When you tilt your head back to look up at him, he’s staring at the boy with a look you can’t decipher. When the lanky boy doesn’t move, Keishin’s eyes squint. “Now.” His tone seems to be enough for the boy to get a move on, his face showing his shock and fear. “Anyone else want to make a comment?” He pauses and no one else dares to speak. “Good. Let’s start then. Everyone off the court.”

He removes his hands from you and walks over to a boy with brown hair and a one on his jersey, taking the volleyball from him. So he’s the captain, got it. “Line up!” he shouts, the boys rushing about to get into a line by the outer lines of the court, other than the one who is still running laps. You follow after Keishin, giving the boys shy, nervous smiles when they make eye contact with you. You stand beside Keishin and take the volleyball from him when he passes it to you.

“Alright. All of you introduce yourselves. Say your name, year, and position.”

The boy he took the ball from steps up out of line first, sending you a sweet smile. “Hi, it’s nice to meet you, Ms. (L/n). My name is Daichi Sawamura and I’m a third year. I’m the Captain, and I play as the wing spiker and opposite hitter,” he says politely before bowing and stepping back into line. His kindness makes you relax a bit, a more genuine smile coming to your face.

“Hi, it’s nice to meet you, Daichi.”

Two more third years introduce themselves in a similar way before getting back into line. The boy who spoke up first when you walked in suddenly steps forward, his spine straight and his head held high. “Hello, miss! My name is Yū Nishinoya! I’m a second year! My position is the libero! You are very pretty!” he shouts before bowing very dramatically before stepping back into line. You notice that some of the other boys start snickering at the last part. You blush at the compliment, but your smile falters when you repeat his words in your head.

Libero.

“Thank you, Noya,” you reply, remembering what Keishin always calls him. He gasps and lights up when you use his nicknames, his eyes twinkling as bright as stars, causing you to smile again.

Just then, the boy that was running laps stops and comes to stand right beside Noya, his chest rising and falling quickly as he tries to catch his breath. “Hi. I’m Ryūnosuke Tanaka. Second year. Wing spiker, outside hitter,” he pants out, making his words very choppy. Keishin rolls his eyes but you just giggle, giving him a wave. He perks up at this and stands much taller now. “I also think you’re very pretty!” Ah, so he must be the flirt of the group.

“Thank you,” you say with a giggle.

Three more second years speak up before two boys move forward at the same time. “Hey! What do you think you’re doing?”

“What am I doing? What are you doing, stupid!”

“I’m not the one being stupid, stupid!”

“Oh yeah, real mature!”

Before the other could reply, Keishin is yelling at them to “can it.” They zip it up and turn to face you again, rigid as soldiers. They couldn’t look more different. One is short with fiery hair while the other is tall and has a resting bitch face. Their dynamic makes you smile. It reminds you of two youngins that didn’t act too much differently than they did. You glance at Keishin just as one of them starts speaking.

“Hello. My name is Tobio Kageyama. I’m a first year and I’m a setter.” Ah, so he’s the other setter in the group. That must be hard for one of them and from what you know, Kageyama is a force to be reckoned with on the court.

“Hi! It’s really nice to meet you, Ms. (L/n)! I’m Shōyō Hinata! I’m a first year and I’m a middle blocker! Oh! And a decoy!” Your brow approaches your hairline at this and turn to look at Keishin only to find him smirking with his arms crossed over his chest. He looks real proud and smug right now. You’ve heard of their combo attack but have yet to see it in person. Now you’re quite curious.

“It’s nice to meet you both,” you reply with a smile. You’ve heard so much about both of them and you can’t wait to see them play today. Tsukishima and Yamaguchi go last, and you can’t help but feel like Tsukishima is scrutinizing you. Hm, guess you’ll have to prove yourself to him.

Once everyone is done, you step forward with your arm holding the volleyball on your hip in place. “Thank you, everyone! It really is so nice to meet all of you! Keis—Coach Ukai talks so much about you, so it’s really great to put names to faces.” Keishin grumbles beside you when you mention that he talks about them a lot, but it was worth embarrassing him a bit when you see how the boys light up at this news.

“As he said, my name is (L/n) (Y/n) and I’m here to try and help you get even better at volleyball. I may not be as good as your coach, but I’ll do my best to help you.” You then bow to them, causing everyone’s eyes to widen. “Please let me know what I can do to do that,” you finish softly before standing up straight. You find them beaming at you and you hope more than ever that you’ll be able to do right by them.

“Right! So, who wants to see what (Y/n)’s made out of?” Keishin asks mischievously, bopping the ball out from under your arm and bouncing it up into his hands. Some of the boys excitedly raise their hands in the air while some others nod enthusiastically.

“You heard ‘em, (Y/n)! Onto the court you go!” he shouts as he walks over to one side of the net, a sigh coming from you as you watch him go. You should’ve known he’d be up to no good when you lost that bet. You bite your lip as you pull your sweats down your legs to reveal athletic shorts underneath. If Keishin had a mini heart attack when you started stripping in front of the boys, that’d be his business and his business only. He does, however, glare at the brats when he catches them eyeing up your newly revealed skin. God, high schoolers are such pervs. He may be doing the exact same thing, but at least he’s allowed to be doing it!

You then pull your hoodie over your head, and Keishin thanks the gods that you’re wearing a jersey instead of a crop top or tank top, or something equally as bad. He might’ve died right here if you had been. When you drop the clothes onto the chair he normally sits in and walk to the opposite side of the court, he’s able to get a good look at your top.

And if his heart flutters when he realizes that you’re wearing his old jersey, then that’s his business and his business alone, okay? His last name is scribbled across the top of the back in big letters along with the number two beneath it. And if he turns to look at his boys with a smug smile, who is to judge him? He feels like he can take on the world right now.

“Alright. I’ll hit this to you and you can show us what you got,” he says with a smirk, getting ready to hit the ball as you get into position. You give him a nod and your eyes follow the ball as it soars into the air. You knew exactly what he was doing as soon as you saw the ball’s trajectory.

He purposely gave it a hard hit to make it go flying way off course, making you run to catch up to where the ball was going. You figured maybe you would just hit it and send it back to him, but something came over you. When you get close enough, you throw your body onto the ground and slide, your palm flat on the floor. Just as you reach the right spot, the ball hits the back of your hand and bounces back up into the air. With a swift motion, you’re springing back up onto your feet, catching the ball with a regular pass before it can hit the ground, but as the ball hits your forearms you make it go much higher than you normally would. You sprint over to the net and jump up high, slamming your hand down and spiking the ball onto Keishin’s side. He doesn’t even have time to get it since he didn’t think you would do all that. He’s frozen in shock anyway, much like the rest of the boys. He hasn’t seen you play volleyball in years, let alone pull a stunt like that in a while. Ever since you got hurt, you had never tried to do something like that again. He’s seen you do much crazier things, especially the day you got your crippling injury, but this was still very impressive.

He grins at you as the boys cheer and clap, Noya running up to you and speaking a mile a minute about how awesome that was and how awesome you are. It felt good, to be honest. Being looked up to and impressing people like this.

“I didn’t know you were a libero!” Noya shouts with glee.

“Coach, you didn’t tell us that she was a goddess,” Tanaka says dramatically, still gaping at you. You laugh at this as you walk over to the chair and pick up Keishin’s water bottle, taking a swig from it.

“Oh please, I’m not a-”

“Sorry, I thought it was obvious,” Keishin interrupts, making your eyes go to him. Instead of finding his usually teasing mannerisms, you find him with that look again, the one you can’t quite figure out what it is.

“Alright! Let’s start with some receiving practice. Lord knows y’all need it!” Keishin announces before going to a closet and dragging out a table, pulling it right up to one side of the net.

“(Y/n), would you like to do the honors?” he asks in a gentlemanly tone as he dramatically bows while offering his hand. You snort and walk over to him, unsure of what exactly he wants you to do.

“Do I have a choice?”

“Nope!” he replies all too happy as he helps you up onto the table. You disapprovingly grunt despite the fact that you’re smiling. He drags the cart of volleyballs over to you and then calls out to the boys to make a line. You then start spiking the ball down towards—well, not always towards—them, letting them practice their receives.

After weeks of practicing, you kind of just became the honorary coach for the team. Your month requirement had run out a long time ago and now you’re just here to make sure that these young boys get to accomplish their dreams.

Maybe you were acting selfishly by living precariously through them, but they didn’t seem to mind you sticking around one bit.

When the Spring Tournament arrives, you’re almost as excited as the boys are. You all have been training like crazy for this day, and it’s also the first match where you get to officially announce yourself as a Karasuno coach.

You step off the bus last and heave a sigh of relief, looking around you with a sparkle in your eyes. Wow, this really brings you back to your school days. You focus back on your boys (Keishin has you calling them that now) when you hear yelling.

You find the boys talking to a few different other schools, a smile coming to your face when you see their smiles and light banter. You recognize most of them. Fukurōdani Academy, Nekoma High, Shinzen High, and Ubugawa High seem to be all the ones that you can see at the moment.

A kid that looks scarily similar to Tanaka, other than the blond mohawk he’s sporting, is staring at you with a jaw dropped while Tanaka laughs evilly next to him. Your brow heads for your hairline at the two before turning to check out the rest of the competition.

Though…you find the familiar situation pretty much everywhere you look. Why is everyone staring at you?

You blush under all the eyes and quickly scurry over to Keishin, who is currently shaking hands with a man. “Nice to see you again, Naoi,” Keishin greets with a too-sweet smile, his knuckles practically white with how hard he’s gripping the other man’s hand.

“Always a pleasure, Ukai,” the man returns the greeting, his tone sugary sweet. You raise a brow at the two as you place a hand on Keishin’s back, watching him tense and turn that fake smile to you before seeing who it is. He relaxes and lets go of the man’s hand, giving you a genuine smile.

Before either of you can say anything though, the other coach is speaking. “Oh? And who’s this?”

“This is-” Keishin starts before getting abruptly cut off.

“Ah ah! Let the lady speak for herself, Ukai,” he chides before focusing his gaze back on you, giving you a smile. You giggle at their banter, offering your hand to him.

“My name is (L/n) (Y/n). I’m the new assistant coach for Karsuno,” you introduce.

“(L/n), hm?” he starts as he shakes your hand, “It’s very lovely to meet you. I’m Manabu Naoi.”

“It’s nice to meet you too!” You two drop your hands and then start to head inside the building with the rest of the people from the other schools.

“So, when did you become a coach?” he asks, starting a conversation.

“Oh, not too long ago.” You two continue to talk as you all head towards the gymnasium, an unbelieving sigh escaping you once you get inside.

“Wow…” you mumble, hearing someone behind you let out a whistle at the size of the place.

“Say, how about after the first day is over, why don’t we g-”

“She can’t.”

You turn to look at Keishin with wide eyes, surprise that he cut him off so quickly. Were you about to be asked out on a date?

“Sorry, I don’t think I was asking you,” the man says lightly, not seeming all that offended by it. Guess they get along pretty well underneath all the banter and competitiveness.

“I already know her answer,” Keishin replies with a cross of his arms, smiling at ​​Naoi.

“You do?” you ask with a raise of your brow towards the fake blond. His eyes flash over to you, his confidence wavering a bit under your gaze.

“Yeah. I do,” he says, turning to face you now. If you were anyone else, you probably would’ve been intimidated by his gaze, his crossed arms, and piercings, but you’re not just anyone.

You’re his best friend. And you know for a fact, that after all these years, Keishin is a bit of a softie when it comes to you.

“Oh? And how’s that?” you ask as you cross your own arms and stare up at him challengingly.

He hesitates for a moment, seeming to look for something in your eyes. After he seems to find it, he steps closer to you, getting right into your personal space.

“Because you’re going to be busy with me after this.”

And, god, the way he says that makes your legs turn to jello. Do you look as flustered as you feel? You sure hope not.

You can tell by his winning smile that you know that you do though. Ugh, you swear you hate him.

“Really? I don’t recall ever saying that, Kei,” you reply, smile even sweeter than sugar, repeating what they had done earlier.

“Well, how about we bet on it then, doll?” Curse him. Curses!

“Fine. What are the stakes?”

“You have to go on a date with me if we win today’s match,” he states, leaning down to bring his face closer to yours. Easy peasy, lem-

Wait. Did he just say…a date?

Oh god, oh god, oh go-

“Fine,” you reply too shakily for your liking. Get it together! “You have to buy the whole team dinner if we lose then,” you challenge. You would never hope for your boys to lose and you could scream from the rooftops right now about the fact that the love of your life just asked you out on a date.

A date!

“Ha! As if we’d lose!” he laughs, offering his hand to you and poking the tips of his fingers right between your collarbones.

You snatch up his hand and start shaking it with a smile that would put the Joker to shame. “Let’s hope not.”

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►Karasuno High is a high school located in Torono Town, Miyagi Prefecture◄

▶Karasuno’s strongest attribute is its offensive power, with a heavy focus on attacks such as the quick strike, pipe-line, and synchronized attacks using tempo. It also utilizes uncommon techniques like the Calculated One-Point Two-Setter, the jump float serve, and a libero toss to throw off opponents◀