By the end of the week, everyone in class knew three things about Kang Joon.
One: he had lived overseas.
Two: he was annoyingly good at both sports and grades.
Three: he was hard to read.
The fourth thing—that he spent most breaks near the quiet girl by the window—was the one that bothered Ara the most.
"He's looking over here again," her deskmate whispered, hiding behind a textbook.
Ara kept her eyes on her notes. "You're imagining things."
"I'm not. Look, look."
"No."
She refused to look back. Looking led to noticing. Noticing led to caring. Caring…
Her hand tightened around her pen.
The bell rang. Chairs scraped. The teacher gathered his books and left.
Instantly, the classroom filled with noise. A group of boys dragged Kang Joon into a conversation at the front. Some girls gathered around to ask questions about his life abroad.
Ara exhaled slowly and relaxed her shoulders.
Good.
If he was busy with everyone else, he wouldn't have time for her.
She opened her lunchbox, eating in silence. The taste of kimchi and rice was faint, dull at the edges.
"Ara."
She looked up.
Kang Joon stood by her desk with his tray in hand, as if it were the most natural thing in the world.
"Do you mind if I sit here?" he asked.
Her deskmate's eyes doubled in size.
Ara's first instinct was to say no. To protect herself.
But thirty pairs of ears were already listening. If she rejected him now, it would turn into gossip, questions, attention.
Attention was dangerous in a different way.
"…Do what you want," she muttered.
He smiled faintly, pulled the empty chair in front of her desk, and sat down facing her, long legs folding casually.
Her deskmate stared at them, then at the crowd of disappointed onlookers, then abruptly stood. "I—I forgot my drink," she blurted and escaped.
Coward, Ara thought weakly.
"You don't talk much, but you're popular in your own way," Kang Joon said, opening his lunch.
"I'm not popular," Ara replied.
"People watch you a lot."
"That's just because I sit by the window," she said. "It's a good view."
He glanced past her at the rain-washed schoolyard. "It is."
For a few moments, they ate without speaking. The noise of the classroom blurred into the background.
Ara sneaked a sideways glance at him. He used chopsticks neatly, eating without fuss, expression calm.
Her gaze flicked up, just for a heartbeat.
Nothing.
No countdown. No glow.
Of course.
He wasn't someone she loved.
"Why are you looking at the ceiling?" he asked suddenly.
She jerked, almost dropping her chopsticks. "I wasn't."
"You were," he said lightly. "You do that a lot. Look a little above people's heads. Like you're checking something."
Her stomach dropped.
For a second, the world narrowed to the space between them.
He noticed.
He noticed.
"I'm just… spacing out," she said quickly. "Habit."
"Mm." His eyes lingered on her a second longer than necessary, as if he wanted to say more, but he let it go. "You have a lot of habits for someone who doesn't do much."
"That's rude," she muttered.
"I meant it as a compliment."
"It didn't sound like one."
He huffed a quiet laugh. "You're honest. I like that."
The simple sentence sent a tiny shock through her chest.
Like.
It was such a harmless word, but coming from him, directed at her, it made her pulse stumble.
"I don't need you to like anything about me," she said, a little too fast.
He tilted his head. "Too late."
She focused on her rice, refusing to respond.
If she ignored it, the moment would pass.
If she pretended not to hear, her heart would forget.
When the lunch bell ended, he returned to his seat without another word, as if nothing strange had passed between them.
Ara exhaled slowly.
Her rule was intact.
She hadn't loved anyone.
Nothing bad would happen.
Yet, when she went home that day, something small shifted.
Her mother was at the stove, apron tied around her waist, humming a tune as she stirred the pot. The rich smell of soup filled the kitchen.
"Ara, you're home," her mother said, glancing over her shoulder with a smile. "Wash your hands. Dinner's almost ready."
"Okay."
Ara's gaze flicked up automatically.
The usual glow of numbers hovered above her mother's head: a long string of days and years, counting down slowly.
It comforted and terrified her at the same time. She had memorized the shape of that timer long ago.
She washed her hands, set the table, moved on autopilot.
When she passed by again, she looked up without thinking—
And froze.
The numbers had shifted.
Not just by a second or a minute.
A whole day had vanished.
The timer had jumped, like a skipped frame in a movie.
Her heart stuttered. "Mom."
Her mother turned, blinking. "Hm?"
"Did something… happen today?" Ara asked.
Her mother frowned. "At work? Just the usual. Your boss called? Did you feel sick? Did you trip, anything?"
"Why are you suddenly interrogating me?" her mother laughed. "I'm fine. My biggest problem is your father forgetting to buy soy sauce again."
She looked healthy. She moved casually, no sign of pain.
But the missing day hung above her like a shadow only Ara could see.
"If I don't love, they live," Ara had told herself.
But she loved her mother fiercely. She always had.
And now the timer had dropped, even though Ara hadn't done anything.
A cold thought crept in.
Maybe it was never about what she did.
Maybe she was only seeing what was already decided.
Her chest tightened.
"Ara?" her mother's voice softened. "Are you sure you're okay?"
Ara swallowed. "I'm fine."
She wasn't fine.
But she smiled and picked up chopsticks and ate dinner as if the world hadn't tilted a little to the side.
That night, alone in her room, she hugged her pillow to her chest and stared at the ceiling in the dark.
She thought of Jaemin's countdown blazing toward zero.
She thought of her mother's timer skipping, losing a day without warning.
She thought of Kang Joon, sitting in front of her at lunch with absolutely nothing above his head.
No numbers. No change.
As if time didn't know what to do with him.
"Maybe you're not the problem," she whispered to herself. "Maybe you just… see it."
It was a small comfort.
A dangerous one.
Because if she wasn't the cause, then maybe—just maybe—loving someone wouldn't kill them.
Her heart, traitorous and hopeful, seized onto that thought.
Her mind, scared and tired, tried to push it away.
She turned onto her side, pulling the blanket closer.
The room was quiet.
Too quiet.
Her thoughts weren't.
Jaemin.
Her mother.
Kang Joon.
The numbers.
The missing time.
The empty space above his head.
She squeezed her eyes shut.
No.
She had made her rule for a reason.
If she started questioning it now—
something would go wrong.
The next morning, the rain had stopped.
The air felt clearer.
Lighter.
Ara stepped into the classroom.
He was already there.
Sitting in his seat.
Head tilted back slightly.
Eyes closed.
Like he hadn't slept.
She paused.
And for the first time—
she didn't look above his head.
She just looked at him.
He looks tired.
The thought came quietly.
Naturally.
Her fingers tightened slightly around her bag.
Why do I care?
She walked to her seat and sat down.
The chair made a soft sound.
His eyes opened.
He turned his head just enough to look at her.
"Morning," he said, voice low, still heavy with sleep.
Ara hesitated.
Just for a second.
"…Morning."
It was a small word.
Ordinary.
But something about it didn't feel ordinary at all.