Seo Yoon woke before the sun.
It was 5:30 a.m., the usual hour, but she didn't need the alarm to remind her. Being the eldest daughter had trained her body and mind to wake with purpose, even when the rest of the house was still wrapped in sleep.
She lay in bed for a moment, listening to the quiet rhythm of the house. Her parents' room was dark and silent. Her younger siblings' faint breathing reached her ears. The world was still, except for her.
She pushed the blanket aside and swung her legs over the edge of the bed. The wooden floor was cold, but she barely noticed. Every movement had been practiced a thousand times: washing her face, tying her hair neatly, brushing her teeth with precision. Perfection wasn't a choice—it was a requirement.
By six, she was in the kitchen.
The kettle hissed as water boiled. The table was set with care: bowls lined up, chopsticks in perfect alignment, the rice still steaming. Nothing could be out of place.
"Seo Yoon?" Her mother's voice came softly from the hallway, heavy with sleep.
"Yes, Mom," she replied, turning slightly but keeping her hands steady.
"You're up early again…"
"I couldn't sleep."
It wasn't a lie. Not exactly. She had slept. But not peacefully. There had been… interruptions. Fragments of something she couldn't explain. Flickers of other lives she'd never lived—or maybe had, somehow.
Her mother hummed and left the kitchen, leaving Seo Yoon to finish preparing breakfast. The house was quiet again, save for the faint ticking of the clock.
School was no different.
"Good morning, Seo Yoon," her homeroom teacher said, smiling faintly as she entered the classroom.
"Good morning," she replied politely. She moved to her usual seat by the window, where the sunlight didn't glare directly into her eyes.
Her classmates talked and laughed, the sound filling the room with ordinary chaos. She didn't join in. She listened. Always listened.
"Did you study for the history test?" one girl whispered to her during class.
"Yes." Seo Yoon's voice was quiet, calm, and precise.
"Of course you did," the girl said with a small laugh. "You always do."
Seo Yoon smiled faintly. That was what people expected. That was what she gave them.
Lunch was when the first flicker hit.
It started as nothing. A slight pause, a tingle at the edge of her mind, like déjà vu—but sharper, more insistent.
The chatter of the cafeteria faded. The fluorescent lights above her blurred. A different scene pressed against her mind: a girl, standing in a shadowed room, trembling. Her own hands—but smaller, not quite hers—clenched into fists.
"Don't go outside," a voice whispered in her ear, urgent and afraid.
Seo Yoon froze, her chopsticks suspended above her lunch. The world around her—noisy, bright, ordinary—was suddenly gone.
And then it vanished.
The cafeteria returned in full force. The voices, the laughter, the smell of food—all ordinary again.
"Seo Yoon?" her friend's voice cut through her daze. "Are you okay?"
"Yes… I'm fine," she said, lowering her chopsticks. Her hands felt steady, but the cold weight in her chest told her otherwise.
That night, Seo Yoon couldn't sleep.
Her room was dark, silent, but the memory lingered—the other girl, the whispered warning, the fear that was not her own. Her chest tightened as she hugged her knees to her chest.
This wasn't a dream. She knew it wasn't.
Her mind had been touched by something older, something persistent, something that refused to leave.
A quiet, terrifying thought crept in.
What if it isn't over?
What if it wasn't just one life?
What if she was remembering… every eldest daughter before her?
Seo Yoon's fingers tightened around her blanket. For the first time, fear truly touched her—a fear she could not control, could not hide.
And as she stared into the darkness of her room, she realized it: this time, the story might be hers to change.
Or hers to end.