Game of the Insane (Yandere Haikyuu!! x F!Reader Oneshots)

COMPETITIVE (Sakusa Kiyoomi)

A request from my Tumblr!

Title: Competitive

Pairings: Sakusa Kiyoomi x Reader

WARNINGS: Yandere themes, descriptions of murder, I know nothing about Japanese volleyball rules for girls on guy teams so just pretend I'm right

Summary: Sakusa's never felt this competitive before. Maybe it has something to do with his newest opponent.

competitive

/adjective/

having or displaying a strong desire to be more successful than others:

Sakusa had never felt this alive.

He was used to staying in the background with a bored, disdainful expression. Judging people from a distance while staying in his own little germ-free corner. He rarely found interest in anything but volleyball.

Sure, he got competitive during volleyball, much more than in any other aspect of his life. He didn't like leaving things unfinished and losing felt unfinished. He had a tendency to label rivals as a threat and overfocus on them throughout every match.

But never had he been more competitive than against this team.

He couldn't understand why he viewed most of this team as such a threat or why he wanted to crush them harder than any team in the past.

Sakusa prided himself on his honesty, even if it went into the territory of being way too blunt. But this wasn't so much lying to himself as it was being unable to figure out why?

He barely heard the whistle sound as he blankly turned to look at the scoreboard. Oh. They'd won. And by nearly 15 points. He'd been much too focused on the game to pay attention to the score. It felt like a blur.

The team he was playing at lined up and began to do their punishment exercises- running up and down the hill outside. Honestly, the training camp was going easy on everyone. If you lost in a competition, you were out.

Sakusa's eyes trailed after one particular player as the number 13 jersey jogged through the morning dew-laden grass. You.

He'd been surprised that a team had let a girl play, but he had originally supposed you were just a bench warmer, let on to keep the parents' mouths shut about equality. He had been outright shocked (though he'd never show it) when you lined up to play off against the other teams as not even the libero, but the setter.

You weren't filling in for anyone, either, that much was for sure. Sakusa had watched your team beat another before playing against his and you were good. Your movements were fluid, your form was perfect, and you were a quick-thinker. Not a genius like Kageyama and not as talented as Oikawa, but you were a worthy opponent by far.

When he went up against your team, one of the wing-spikers (the one right across from him) said something snarky, something he couldn't even remember anymore, and put his arm around you for just a moment while laughing.

And then, he'd been consumed by a need to win he couldn't hope to control.

When your team turned around to run down the hill, he could see the disappointment on your face. You felt bad about losing, most likely, even though you'd probably done your very best. Sakusa didn't know, he hadn't been paying attention to you during the match.

Although, now it was over, he felt like he should have been.

You looked like an angel, with the sun's rays lighting you up at that angle- he almost expected a halo to appear above your head. Your beautiful skin shone with sweat but it just enhanced your looks by making you glow.

He wasn't the type to get this distracted by a girl, but he couldn't help it.

"Why are you in a corner by yourself?"

To anyone else, Sakusa would say something biting, making them leave with their tails between their legs. To you, he could only look down at his food silently, wishing he had the guts to say anything to you.

"Would you like to sit with us?" Your voice was so soothing, so kind... You probably thought he was lonely, all by himself, when he did this to himself. He just wanted to get away from the crowd as they ate lunch, but you...

You really forced him out of his comfort zone from the moment you met him, huh?

"I'd prefer to stay here," he managed to mumble out.

"Oh, okay," you looked a little disappointed. Were you hoping to hang out with him? His heart lifted a little at the thought but quickly plummeted when you dejectedly walked away.

He knew then that, if you gave him the chance, he'd do anything to bring that smile back to your face.

The universe must hate him, Sakusa was sure of that.

Somehow, he'd been tasked to be the one to clean up all the dirty, germ-ridden volleyball equipment at the end of the night, along with that infuriating guy from your team that always had his hands all over you.

But you'd given Sakusa a little wave and sweet smile as you left, and that's all that really mattered to him. Silly that a girl he'd just met had so much power over him.

There was a cage filled with all sorts of different PE equipment that the volleyballs were meant to go in. The two boys jogged around the gym, scooping up the balls, dropping them in the cage, and repeating.

It would've been fine, had it been in silence. But the other boy just would not shut up.

At first it was little digs at how their team would beat his next time, about how Sakusa's a "weird guy", and then he said something that sealed his fate.

"(Y/n)'s pretty hot though, don't you think? The girl on our team? Bet you're jealous."

Oh, he was jealous. Jealous beyond words.

"Yeah, I'm glad she's on the team- she looks hot in a jersey and shorts. Doesn't she?"

Is this how he always talked about you? Did you know about this.

The two of them stopped at the cage to drop off volleyballs. As your teammate turned around to gather more, Sakusa fished around deeper inside, under the volleyballs.

"I really wish she'd let me-"

CRACK

The sound of a baseball bat meeting the side of the jerk's skull was a wonderful sound to Sakusa.

The boy slumped forwards, landing on his face and not moving. For good measure, Sakusa brought the bat down hard on the back of his head. Twice.

He didn't bother to touch his disgusting body to get a pulse reading- he could see the guy was dead from a mile away. It felt good. Better than he'd ever expected.

The threat was gone. Now both you and Sakusa could be a little happier.

But he wanted more. He wanted all of the competition out of the way, until it was just you and him. Maybe that was selfish of him but he couldn't help it.

He wondered how many of your teammates he could dispose of before this week-long training camp was over.