Jeon Jungkook was only five months older than you—and he never let you forget it. Best friends since birth, your lives were tangled together in every possible way. Secrets, late nights, almost-confessions—you had it all. Everything except the courage to admit what he really meant to you. So when Jungkook leaves for Seoul to become something bigger, you’re left behind with the one thing you never said: That he was never just your best friend.
Y/N and Jeon Jungkook have always been like this—inseparable, comfortable, and a little too close to just be friends. They argue, tease, and fall back into each other like it’s nothing. There’s always some kind of contact—hands brushing, arms wrapped around each other, quick kisses pressed to cheeks or foreheads without a second thought. It’s natural. It’s normal. At least, that’s what they tell themselves. Because neither of them questions it—not the closeness, not the way they act, and definitely not the quiet jealousy that slips through sometimes, hidden behind jokes and small comments. But when someone new starts getting Y/N’s attention, things begin to shift. And suddenly, everything that used to feel so normal… doesn’t feel so simple anymore.
Jeon Jungkook used to be your best friend. He was always smiling—quiet, soft-spoken, and gentle even when something was clearly wrong. You never fully understood what was happening in his life, only that there were things he never talked about and injuries he always brushed off. Still, he stayed by your side like nothing could ever break him. And then one day, he disappeared. Years later, a new student walks into your classroom and introduces himself as Jeon Jungkook. It shouldn’t be him. But it is. Now he’s back—calm, familiar, and still smiling like he always did. Somehow, you end up in the same spaces again, pulled back into each other’s orbit through shared friends, detention, and moments that feel too small to be coincidences. There are things he still remembers about you that he shouldn’t. Things you notice in him that don’t make sense. And conversations that almost feel like they’re about the past… but never quite say it out loud. When Y/N asks if he’s ever had a girlfriend, Jungkook only talks about a “first love” from middle school. He never says her name. And she never realizes he’s talking about her.