The winter display changed the atmosphere of the second floor.
Students began taking the longer route between classes just to pass it.
Some stopped for only a few seconds.
Others stayed long enough to read every card.
There were even students who had never contributed anything but came back several times to look at the same photograph.
Daewon noticed one of them on Friday morning.
A first-year student stood in front of the display, staring at the photograph of the empty courtyard.
He read the words beneath it.
We were here.
Then he stood there for another few seconds before quietly walking away.
Daewon didn't know why.
He didn't ask.
Some things didn't need an explanation.
He was beginning to understand that.
During lunch, Aera found him sitting on the stairs behind the library.
She carried two cartons of milk and a small paper bag.
"You disappeared."
"I didn't disappear."
"You weren't in the classroom."
"That's different."
She handed him one of the milk cartons.
"Here."
He took it.
"What's in the bag?"
"Food."
"I can see that."
"Then why ask?"
"Because I want to know."
She opened the bag.
Two cream buns.
Daewon smiled.
"You bought these?"
"One is mine."
She handed him the other.
He looked at it.
"This one has more cream."
"I know."
"You gave me the better one."
"I know."
He looked at her.
"Why?"
Aera shrugged.
"You like cream."
"So do you."
"I know."
He smiled.
"You're strange."
She opened her own bun.
"You keep saying that."
"Because it's true."
They ate quietly on the stairs.
The library door opened occasionally behind them as students went in and out.
Outside the window, winter sunlight fell across the school courtyard.
It was an ordinary lunch.
Nothing happened.
And somehow that was exactly why Daewon remembered it.
After lunch, Mr. Kim announced something unexpected.
"The display needs volunteers this weekend."
A few students groaned.
"We've already done enough."
Mr. Kim smiled.
"You don't have to."
Daewon looked up from his notebook.
"What do we need to do?"
"Organize the remaining submissions."
"How many?"
Mr. Kim pointed toward a large cardboard box.
"About eighty."
The room went silent.
Someone whispered, "That's not organizing."
Mr. Kim laughed.
"Fine. Ninety."
Everyone complained.
Eventually, a small group volunteered.
Daewon looked at Aera.
She looked at him.
Neither said anything.
They both knew.
Saturday morning arrived with clear skies.
Daewon reached school at nine.
Aera was already waiting near the front gate.
She wore a dark blue coat and carried her camera.
"You said nine."
"It's nine."
"You're late."
Daewon checked his phone.
"Nine-oh-two."
"Exactly."
"That's two minutes."
"Two minutes is still late."
He looked at her.
"You've become strict."
"I learned from you."
"I've never been strict."
She smiled.
"Exactly."
They walked inside together.
The school felt completely different without students.
The corridors were quiet.
The classrooms were empty.
Even the sound of their footsteps seemed too loud.
They carried the cardboard box to the second floor.
For the next hour, they sorted everything.
Photographs.
Letters.
Drawings.
Tickets.
Small objects.
Pieces of paper.
Some had names.
Some didn't.
Some had dates.
Some didn't.
One student had submitted an old pencil sharpener with the note:
My father gave me this when I started elementary school. It doesn't work anymore.
Another had submitted a broken hair clip.
My best friend gave me this before she moved away.
Aera read the card twice.
Daewon watched her.
"You're thinking."
"Always."
"About the hair clip?"
"About how small things become important."
She carefully placed it into a protective sleeve.
"Imagine if we threw everything away just because it looked useless."
Daewon looked at the objects around them.
"Then we'd lose a lot."
Aera nodded.
"Probably."
They finished organizing around noon.
Mr. Kim had promised to return in the afternoon.
That left them with several hours before he came back.
Daewon looked at the clock.
"Want to go somewhere?"
Aera looked surprised.
"Where?"
"I don't know."
"You invited me somewhere without deciding where?"
"Yes."
"That's unusual."
"Why?"
"You usually plan things."
Daewon thought about it.
She was right.
Most of their trips had some reason.
A festival.
A school activity.
A photography assignment.
An art project.
A field trip.
Even the hidden garden had started with a reason.
Today there was nothing.
Just a free afternoon.
Aera closed her camera bag.
"Okay."
"Okay?"
"Let's go somewhere."
"Where?"
She smiled.
"You decide."
He sighed.
"You just said yes."
"I did."
"And now you're making me decide."
"Yes."
He laughed.
They left the school without a destination.
They walked through Haneul-dong.
Past the bakery.
Past the flower shop.
Past the old laundromat.
Past the alley where they had once found the umbrella repairman.
Nothing seemed worth stopping for.
Until Daewon noticed a small sign hanging beside a narrow staircase.
SECONDHAND BOOKS _ BASEMENT
He looked down.
Aera followed his gaze.
"Have you been there?"
"No."
"Then let's go."
The bookstore was smaller than either of them expected.
There were shelves everywhere.
Old novels.
School books.
Magazines.
Children's picture books.
Travel guides.
Cookbooks.
The air smelled like paper and dust.
An elderly man sat behind the counter reading.
He looked up.
"Looking for something?"
Daewon shook his head.
"Just looking."
"That's allowed."
They separated.
Aera disappeared between two shelves.
Daewon picked up an old sketchbook.
The cover was worn.
He opened it.
Most pages were blank.
On the first page, someone had written a name.
Then crossed it out.
Below it was a sentence.
I wanted to remember this place.
Daewon stared at it.
He looked around.
The bookstore suddenly felt different.
He closed the sketchbook.
Aera appeared beside him.
"What did you find?"
"Nothing."
She looked at him.
"That's a lie."
He handed her the sketchbook.
She read the sentence.
Her expression changed.
"Maybe someone used this to draw."
"Maybe."
"Are you going to buy it?"
Daewon looked at the price.
"Probably."
Aera smiled.
"Of course."
They left the bookstore with the sketchbook.
The afternoon had become warmer.
They stopped at a small park and sat beneath a tree.
Daewon opened the sketchbook.
The blank pages stretched ahead.
Aera looked over.
"What will you draw?"
"I don't know."
"Why did you buy it?"
"Because someone left it unfinished."
Aera looked at him.
"That sounds like you."
"What does?"
"You always want to finish things."
Daewon thought about that.
Maybe she was right.
He drew constantly because drawing allowed him to keep things from disappearing.
A face.
A street.
A hand.
A rainy window.
A place.
A moment.
If he could put it on paper, perhaps it would stay.
Aera took out her camera.
Daewon looked at her.
"What are you doing?"
"Taking a picture."
"Of what?"
She turned the camera toward him.
"You're holding an old sketchbook."
"So?"
"It looks like something worth keeping."
Click.
Daewon laughed.
"You've used that excuse before."
"I know."
She checked the photograph.
Then showed him.
He was sitting beneath the tree, sketchbook open across his knees.
Sunlight filtered through the branches.
It wasn't a perfect photograph.
His hair was messy.
His posture was slightly awkward.
There was a leaf stuck to his coat.
But he liked it.
"I look tired."
"You do."
"Thanks."
"You're welcome."
He smiled.
Then he opened the sketchbook.
Instead of drawing the park, he drew Aera.
She noticed after a few seconds.
"You're drawing me."
"Yes."
"Why?"
"Because you're here."
She was quiet.
Then she lifted her camera again.
Click.
Daewon looked up.
"Again?"
"Because you're drawing me."
She lowered the camera.
"Now we have proof."
"Proof of what?"
She smiled.
"That we spent today doing nothing."
Daewon laughed.
They stayed at the park until the sunlight began turning gold.
No event happened.
No one surprised them.
No one called.
There was no competition.
No school announcement.
No important discovery.
They simply sat together.
Aera looked at the photograph she had taken earlier.
"Daewon."
"Hm?"
"Do you think we'll remember this day?"
He looked around.
The park.
The old tree.
The secondhand bookstore across the street.
The sketchbook.
The empty path.
Her blue coat.
The sunlight.
"I think I will."
"Why?"
He closed the sketchbook.
"Because nothing happened."
Aera laughed softly.
"That's a strange reason."
"Maybe."
He looked at her.
"But we spent the whole day together."
Her smile became quieter.
"Yeah."
She looked at the photograph again.
"Then maybe that's enough."
They walked back toward the school before evening.
Halfway there, Aera stopped.
Daewon turned.
"What?"
She pointed toward a small puddle beside the sidewalk.
Their reflections were visible in it.
Two people walking side by side.
She raised her camera.
Then stopped.
Daewon waited.
"What's wrong?"
Aera lowered the camera.
"I don't want to take it."
"Why?"
She smiled.
"Because I think I want to remember this one myself."
Daewon understood.
He didn't tease her.
He simply stood beside her.
After a moment, they continued walking.
The puddle remained behind them.
Their reflections disappeared when someone stepped through the water.
And neither of them turned around.
Because some moments didn't need to be saved.