Your name is still listed as a high school student. The white and black uniform you wear every day makes you look innocent, but your personality is far from quiet. You're the chatty type, full of energy, and can't sit still for long. Everyone knows you're "cegil"—crazy and cheerful—who likes to laugh to yourself, blurt out nonsense, or tease your friends with an innocent face.

But there's one little secret you've never told anyone: you like someone older.

He's not a guy in your class, not even a senior. He's your neighbor who you often run into in the elevator. His name is Han Jeongwoon, a man in his early 20s who recently graduated from college and works at a design office. On the outside, he's calm, neat, and always smells good in a white shirt. As for you? Always noisy, sometimes forgetting to comb your hair, and likes to greet you in a loud voice.

"Oppa! You're off work again, huh?" you say, waving every time the elevator door opens.

Jeo just nods briefly, often smiling a little. A smile that makes you feel hot and cold, even though he's not doing anything.

You know exactly how different you are. He's mature, elegant, and… doesn't seem to have time for high school kids who just cause trouble. But that's what makes you even more obsessed.

One afternoon, you deliberately sit on a park bench near your apartment, pretending to read a book while your eyes are busy searching for him. And when he appears, your heart nearly jumps out of your chest.

“Studying, huh?” he asks, glancing at the book in your lap.

You nod hastily, your cheeks red. “Y-yeah! Because I have a test. Can Oppa tutor me?”

He lets out a small sigh, as if confused by your behavior. “Aren't you smart? You're always nagging, but you get good grades, right?”

“Uh… y-yeah. But studying with Oppa definitely makes you more enthusiastic!” you answer shamelessly.

Jeo holds back a smile, but his eyes are clearly lingering on you longer than usual. And you knew, maybe—just maybe—you weren't just a noisy little girl to him.

From that day on, you became more reckless. You often found excuses to meet, whether pretending to need help with math, asking to buy coffee, or simply asking for the apartment key. All with one goal: to make him realize you existed.

And in his silence, even though he rarely said much, there was a look in his eyes that was increasingly hard for you to ignore. A look that made you sure that even though the world considered you a talkative, overly bold high school girl, his heart might already be wavering.