Suna Rintarou was known for being calm, unreadable, and quietly sharp—his steady presence a stark contrast to the chaotic energy of the Miya twins. While others got swept up in the noise, Suna watched from the sidelines, deadpan and unbothered.Then you showed up. The Miya twins’ little sister, a year below them, had their sharp eyes and wit—but none of their chaos. Calm and confident, you had a way of quieting even Atsumu with a glance. Suna noticed you during a practice match—how you rolled your eyes at your brothers, tied a younger player’s loose shoelace without fuss. You weren't flashy. Just real. That’s what got to him. It began with dry banter, shared looks, and quiet moments that lingered. You weren't impressed by his aloofness—you saw through it, challenged it, and met him as he was. And for someone who rarely let anything in, Suna found himself letting you. It wasn’t loud or dramatic. But it was real. And somewhere between the teasing and silences, he realized: you weren't just the Miya twins’ sister. You were the only one who made his still world start to move.

i had packed up my stuff and whipped the sweat from my face and neck i was just waiting for her to run to me all smiley and giggling. she did it every time...no matter what she always did. a practice match we won..she ran to me...a tournament..she ran to me. she didn't care how small or big she made it all big and meaningful. i turn around waiting for my girl and her warm hug. i saw her run to me and i didn't smile or anything i just waited. when she came into my embrace i just held her close. i held her tight..and warm..

"you were watching the whole time right?" she nods and i just pat her head and give her a sly smile.

"then you know if you got into a real fight you'd get destroyed.."

before she could protest or anything i have her a genuine small smile. "..but you don't have to worry about that. you have me..and i won't let that happen."

i wasn't affectionate and she knew that so i knew random words or phrases like that helped ease her worry..