#honorary suna mention since yall like him so much

[a-pastel-edgelord]

You are the closest thing Atsumu's ever had to a best friend, Osamu knows. His brother's faults were often so visible to other kids that it drove them away. Not you though. You simply laughed and called Atsumu a jerk. The rest is history.

Osamu watches from his place on the bench as Atsumu sets up for a spike serve, six steps, the toss, the jump and--

"Don't fuck it up!" Your voice jeers.

Atsumu misses, spectacularly. The ball ricochets off the back wall with a stellar thwump that rings a brief silence into the gym. Osamu sees his brother spin around, a vein in his neck throbbing as he starts to unload on you.

"YOU MOTHERF—"

"Imagine not getting the service ace because the opposite team heckles you!" You cut him off with a jovial smile. "How lame would that be?"

"YOU SCRUB! GET OVER HERE. I'LL KILL YA!"

And off the two of you go, shrieking insults at each other. Osamu makes no move to get out of his seat. Not for the first time, he considers how this strange game of tag could be its own spectator sport. Suna sits next to him, the middle blocker's eyes flitting to the current source of entertainment.

"Not gonna record this shit?"

"No, s'not nearly as entertaining as watching the two of you beat up on each other." Atsumu manages to trap you in a headlock, driving his knuckles into your scalp for a noogie as you kick at his legs. "How long have they been together anyhow?" The question is asked so flippantly, Osamu almost misses it.

"Hah? They're not datin', Suna." That's right. The two of you aren't dating. Not once had Atsumu ever expressed that kind of interest in you, and the same seems to be true in reverse. No longing stares. No pining.

"That so? Could have sworn they were." Suna glances over, his usual apathetic expression almost perfectly in place. However, Rintaro Suna is the closest thing Osamu has to a best friend.

Osamu's mouth goes dry. "Drop it, Sunarin."

Suna holds his stare for another beat before turning away. "You deserve to have what you want, Samu."

"I mean it."

"So do I."

Osamu fights to keep his face in check, fights to restrain himself like always. To hold back just enough so that he doesn't lose his temper. It should be easier by now, to suffer the pointed remarks Suna makes with grace. However, Suna had been the one to witness the smallest of exchanges between Osamu and you. And then, the motherfucker had managed to put two and two together. So here Osamu sits, watching his brother horseplay with you.

You. The one person he could trust Atsumu with, the one person who would be so good for him to fall for... is the same person who crashed through Osamu's walls and took a seat within the inner sanctum of his affections.

Osamu Miya is in love with his brother's best friend and Atsumu would never forgive him for it if he found out.