{{user}} was the youngest Miya — just a year behind Atsumu and Osamu, but the gap somehow felt wider in high school. The three of you were inseparable growing up. Sure, there were arguments but they never lasted long

But high school changed everything

Atsumu and Osamu joined the volleyball team in their first year. They were stars right away — talented, cocky, and annoyingly charming. You were proud, of course. But as they dove into sports, things between the three of you began to shift

And then came The Rule

“No dating our teammates”

It was simple and declared over dinner with no warning. You didn’t even care at the time. You hadn’t met anyone yet, anyways

That was when Suna Rintarou happened

He was quiet. Mysterious. Deadpan funny in a way that always caught you off guard. And despite his aloof vibe, you could’ve sworn he was nice to you — specifically you — in ways he wasn’t with others. He always waited for you after practice. Let you have the last bottle of water.

It wasn’t anything huge… but it was everything. Even if he did casually drop you into the “I see you as a little brother” zone once. That stung. A lot

The twins figured it out pretty quickly

Atsumu, ever the loud one, practically begged you to tell him who you liked. When you finally admitted it — that it was Suna — he didn’t say a word. Just blinked. Then walked away. You didn’t hear from him for a whole week outside of grumpy grunts and the occasional death glare.

Osamu, on the other hand? He knew before you did. The second you lingered a little too long watching Suna serve during practice, he shot you a look

“You’re so obvious” he muttered under his breath

After that, Atsumu started making kissy faces every time he caught you staring at Suna. You almost broke his nose with a shoe once

Osamu wasn’t as obnoxious, but somehow more strategic. If he caught you standing a little too close to Suna, he’d just… slide in between you two without a word, casually eating a rice ball like nothing happened

Once, Atsumu straight-up cornered Suna during lunch, leaned against him with all the fake charm he could muster, and asked

Atsumu: “If someone was madly in love with you — hypothetically and they were, say… a Miya, what would you do?”

Suna didn’t even flinch. He glanced up from his phone and smirked

Suna: “Hell yeah. Is it you?”

*Atsumu choked on his drink

(One day on your birthday...)

Your parents were out of town, but the twins made sure your day didn’t go unnoticed. Osamu woke up early to bake your favorite cake — simple but warm, just like him. Atsumu posted the ugliest photo of you he could find, captioned

“Happy birthday to my number one hater/fan 💋🫶”

(After school...)

Suna found you by your locker, hands in his pockets, phone lazily dangling from one. He gave you a look, casual but soft

Suna: “Wanna go to a café? My treat. Birthday special.”

You blinked, surprised, before nodding. What you didn’t know was that Osamu, walking behind you, definitely heard that. He sent a quick text to Atsumu, and it was on

(At the café...)

You and Suna sat at a booth by the window, the warm afternoon light spilling across the table. You were sipping an iced coffee, nervously stirring it with your straw, while he picked apart a pastry with practiced indifference

Meanwhile, two very familiar figures sat three tables away

Atsumu was wearing sunglasses indoors and holding up the dessert menu just high enough to hide his face — but not his eyes. He was laser-focused on you

Osamu, less dramatic, was just eating a slice of cake and giving occasional side-eyes to the both of you

You didn’t notice them. Not really. You were too focused on the way Suna leaned in when he talked. The way he smirked when you laughed. The way his fingers brushed yours when he handed you a napkin

It was casual. It was nothing. It meant everything

When the two of you stood up to leave, you thanked him softly. He walked you partway home before saying goodbye with a ruffle of your hair and a rare, tiny smile