Sistership (™)
Seo-yeon learned early that cameras didn’t just record.
They translated.
They took the blur of human intent–the mess of fear, affection, exhaustion–and turned it into something clean enough to caption. Something that fit inside a thumbnail. Something that could be understood by strangers who had never smelled the chemical tang of stage smoke or felt the pressure of a manager’s hand guiding their shoulder into frame.
So when the van door slid open and a wall of flashes greeted them like summer lightning, Seo-yeon already had her smile on.
Not the wide one. Not the naïve one.
The controlled one.
“Good morning,” she said, bowing with the group as they entered the broadcasting building. The hallway was too bright, glossy white tiles reflecting overhead LEDs. Security staff waved them through with brisk efficiency.
Their new comeback had only been teased.
Already, every schedule felt like it had extra eyes.
The documentary team walked backwards in front of them, a stabilizer rig floating like a careful insect. A producer in black nodded at Seo-yeon, as if they shared a secret.
We’re getting good footage today.
Seo-yeon’s shoulder blades tightened.
She kept her pace steady. She kept her gaze forward.
Beside her, Hikari walked half a step behind, because that was their usual arrangement in narrow spaces–Seo-yeon shielding without meaning to, Hikari tucked into the pocket of her proximity like a habit.
The cameras loved it.
Fans loved it.
And Seo-yeon was beginning to hate the way love could be mistaken for choreography.
A staff member guided them into the waiting room. “You’ll be on in twenty minutes. Please stay seated. PD-nim will come in for briefing.”
The waiting room smelled like hairspray and fabric softener. A mirror wall ran the length of one side, bright bulbs around it making everyone’s skin look slightly unreal. Stylists hovered with brushes and puffs, touching up under-eyes, patting down flyaways.
Nine chairs.
Nine water bottles.
Nine identical sets of schedules printed on paper that would be outdated by noon.
Seo-yeon sat down and immediately felt her phone buzz.
A group chat notification.
She didn’t open it.
She didn’t need to.
The leader glanced at her from across the room–an expression that asked without words: Are you okay?
Seo-yeon gave a small nod.
That was the thing about being the dependable one. You could communicate entire storms with the smallest movements, and people would still accept it because they had no choice.
Across from Seo-yeon, Hikari’s makeup artist dabbed concealer under her eyes. Hikari’s face was angled slightly up, lashes lowered.
To anyone watching, she looked calm.
Seo-yeon saw the small tension in her jaw.
The way her fingers had been worrying at the edge of her sleeve.
The way her phone sat face down on her lap like a secret.
The unknown number.
Seo-yeon didn’t know about it yet, but she could sense something had shifted since last night.
Hikari had said “Tomorrow” and “Later” like promises.
The industry taught you that promises were fragile.
A knock at the door.
The room fell into a practiced quiet.
A man stepped in with a lanyard and a clipboard, followed by two assistants. The PD of the variety show, Seo-yeon recognized him. He’d been around for years.
He smiled as if they were old friends.
“Ah, our nine angels,” he said brightly. “Welcome back. We missed you.”
Everyone laughed politely.
He lifted his clipboard. “Okay, today we’ll do a few standard segments. Introductions, comeback talk, then a little game. Easy. Also, since this is a milestone era–”
Seo-yeon felt the word hit her like a pebble thrown at glass.
”–we want to focus on your group chemistry. Fans love your bonds. So we’ll ask some questions like… who do you rely on the most? Who’s your soulmate member?”
He said it casually.
Like it was harmless.
Like it hadn’t been weaponized against them for years.
An assistant chimed in, “We also prepared pairing corners. You can pick a member and do a challenge together.”
Another assistant added, “We saw that fans love your sister duo too–Seo-yeon and Hikari, right? Your ‘sistership’ is trending.”
Hikari’s artist laughed softly. “Yeah, they’re always together.”
Seo-yeon kept her expression neutral. Her lips curved, just enough.
Sistership.
Like it was a brand. Like it came in a logo.
The PD continued, “We want it to feel natural, though. Just be yourselves. Think of it as… showing your real bond.”
Real.
Seo-yeon’s throat tightened.
Because real was exactly what they couldn’t show.
The PD clapped his hands. “Alright, get ready. We start soon.”
When he left, the room exhaled.
Someone muttered, “Soulmate again? They really have no new questions.”
Another member rolled her eyes. “Just say the leader and survive.”
The leader laughed, but it sounded thin.
Seo-yeon watched Hikari in the mirror.
Hikari met her gaze in the reflection.
For a second, the mirror held two versions of them–the polished idol faces, and the quieter truth behind the eyes.
Hikari’s lips parted slightly, as if she wanted to say something.
Seo-yeon shook her head almost imperceptibly.
Not here.
Not now.
Hikari’s lashes lowered.
A small surrender.
Seo-yeon’s chest tightened with something that felt too close to guilt.
They walked onto the set with their brightest smiles, stepping into a world designed to feel cheerful.
Pastel props.
Neon signage.
A host with perfect hair and a laugh that sounded like it had been rehearsed.
The cameras were everywhere, but this kind of set made it easy to forget the weight of them because everything was so loud.
The host greeted them with exaggerated delight. “Everyone! Please introduce yourselves!”
Nine voices chimed in, familiar lines delivered with fresh energy.
Seo-yeon’s voice was steady.
Hikari’s voice was bright.
The audience–small, mostly staff and invited fans–cheered.
The host started the usual questions. “How do you feel about this comeback?” “What’s the concept?” “Any spoiler?”
They answered, laughing, teasing each other, performing a version of intimacy that was safe.
Then came the question Seo-yeon had been bracing for.
“Alright,” the host said, leaning forward, eyes sparkling. “We know your group is famous for close bonds. So–if you had to choose one member as your soulmate, who would it be?”
The audience squealed.
The cameras zoomed in, hungry.
Seo-yeon felt her body go very still.
She could answer safely.
She could say the leader.
She could say anyone.
But she knew–she knew–that the producers were waiting for her to say Hikari.
Because it would trend.
Because it would feed the shipping edits.
Because it would give the documentary team the emotional beat they wanted.
The host pointed toward Seo-yeon first. “Seo-yeon-ssi! You’re the reliable one. Who do you rely on the most?”
Seo-yeon’s smile stayed in place.
She answered with the safest truth she had.
“Our leader,” she said, gesturing with warmth. “She carries us.”
The leader laughed and waved her off.
The audience clapped.
A clean answer.
The host nodded, but Seo-yeon caught a flicker of disappointment.
He turned to Hikari. “Hikari-ssi! What about you?”
Hikari lifted her microphone, eyes bright.
She could also answer safely.
She could mirror Seo-yeon.
She didn’t.
She tilted her head and smiled in a way that made the audience lean forward.
“I think… Seo-yeon unnie,” she said in Korean, voice clear.
The audience erupted.
The host shrieked in delight. “Ooooh! Seo-yeon and Hikari again! Legendary sistership!”
Hikari laughed, cheeks slightly pink.
Seo-yeon felt the words hit her like a hand pressed to the sternum.
Hikari continued, still smiling, “She takes care of everyone. So I… I feel safe with her.”
Safe.
A safe word.
And yet–Seo-yeon could hear the layer beneath it.
Because Hikari’s eyes, when she said it, didn’t look like a joke.
Seo-yeon forced a laugh and lifted her hand to cover her mouth in a “shy” gesture that fans loved. She did it because it looked cute.
She did it because it hid the way her lips trembled.
The host clapped his hands. “Perfect! Okay, now we’ll move into our pairing game!”
Assistants wheeled out props.
A large board with hearts.
Cards with member names.
The game was simple: pick a partner, do a challenge together, score points.
The producers pretended the members had full choice.
Seo-yeon already knew how it would go.
The host read the first card dramatically. “Seo-yeon and…” he flipped it. “HIKARI!”
The audience screamed.
Hikari widened her eyes in exaggerated surprise. “Really?”
Seo-yeon laughed, as if she didn’t know it was coming.
The host smirked. “It’s fate. Red string.”
Seo-yeon’s stomach tightened at the metaphor. Fate was a story people told to make control sound romantic.
The challenge: a whispered sentence game.
They had to stand close.
Hikari had to whisper a sentence into Seo-yeon’s ear.
Seo-yeon had to repeat it.
Simple.
Harmless.
Except the sentence would be something “cute.” Something meant to make the audience squeal.
They handed Hikari a card.
Hikari glanced at it.
Her eyelashes fluttered once.
Seo-yeon watched her expression shift–micro, but real.
Hikari stepped closer.
The studio lights were warm. The air smelled like powder and camera heat.
Hikari leaned in, lips near Seo-yeon’s ear.
Seo-yeon’s entire body went alert.
Hikari’s hair brushed Seo-yeon’s cheek.
A soft, fragrant touch–shampoo, something floral.
Hikari whispered in Korean, voice low enough that only Seo-yeon could hear.
“언니… 사랑해요.” (eonni… saranghaeyo) – Unnie… I love you.
The audience squealed instantly.
They couldn’t hear it.
But they could feel the proximity.
The host laughed. “What is it? What is it? Seo-yeon-ssi, say it!”
Seo-yeon’s heart slammed.
Of course.
Of course they would choose that.
She forced a bright laugh and repeated the sentence into the microphone as if it were purely fanservice.
“언니… 사랑해요!” (eonni… saranghaeyo!) – Unnie… I love you!
The audience screamed.
The host fanned himself dramatically. “Ah! Their sistership is too strong!”
The cameras zoomed in on their faces.
Seo-yeon smiled.
Hikari smiled.
Their smiles were identical in shape.
Their insides were not.
Because Hikari’s whisper had been soft, warm, and–Seo-yeon could not ignore this–just a fraction too sincere.
After the game, as assistants rearranged the set for the next segment, Seo-yeon leaned slightly toward Hikari.
In Korean, barely moving her lips, she murmured, “너무해.” (neomuhae) – That’s too much.
Hikari’s eyes widened, then softened.
She replied in Japanese, still smiling for the camera, “でも、本当だよ。” (demo, hontō da yo.) – But it’s true.
Seo-yeon’s breath caught.
She couldn’t react.
She couldn’t look.
So she laughed as the host made another joke, and the audience clapped, and the studio carried on.
She had never felt more trapped inside applause.
By the time filming ended, her cheeks hurt from smiling.
They bowed, waved, exited.
Back in the hallway, away from the set lights, the air immediately felt colder.
Not temperature.
Pressure.
Staff moved briskly, checking phones, adjusting schedules. The documentary team caught up again, camera bobbing.
“Great!” the documentary producer said brightly. “That whisper game was gold.”
Gold.
The word made Seo-yeon’s stomach twist.
The producer turned to Seo-yeon. “You were so cute when you got flustered. Fans will love it.”
Seo-yeon smiled politely. “Thank you.”
Hikari walked beside her, quiet now.
They reached the elevator bank.
As they waited, Seo-yeon felt it.
A gaze.
Not the documentary camera.
Not the fans.
A staff member standing a few meters away–someone she didn’t recognize from their usual team. Black suit. Earpiece. A face that looked blank in the way that security faces often did.
He wasn’t looking at the leader.
He wasn’t looking at the group.
He was looking at Seo-yeon and Hikari.
Seo-yeon’s chest tightened.
She leaned slightly toward Hikari.
In Korean, she murmured, “저 사람.” (jeo saram.) – That person.
Hikari’s eyes flicked to the staff member.
Her expression didn’t change.
But her fingers curled around the strap of her bag.
The elevator dinged.
They stepped in.
The doors closed.
Only then did Seo-yeon allow herself to exhale.
The members chatted softly, complaining about the game, laughing about the host.
Hikari stayed quiet.
Seo-yeon watched her reflection in the elevator mirror.
Hikari’s smile had disappeared.
Her face looked tired.
And there was something else–an edge of fear that Hikari was trying very hard to swallow.
Seo-yeon’s throat tightened.
She remembered last night.
The living room lamp.
Seo-yeon’s own words: “Stable. No rumors. No distractions.”
Distractions.
As if love was a stray noise to be muted.
As if her heartbeat was something to manage.
The van ride back to the company building was quiet.
Not because they had nothing to say.
Because the documentary team was in the van too.
A camera pointed forward from the aisle.
A producer sitting near the middle, eyes always watching, always ready to ask a question.
“So,” the producer said, voice cheerful. “How does it feel to be called ‘soulmates’ all the time?”
The leader laughed. “Ah, our fans are creative.”
Another member joked, “We’re soulmates with food.”
Everyone laughed.
The producer leaned toward Seo-yeon and Hikari. “But you two–your sistership is famous. Is it natural, or do you play it up?”
Seo-yeon felt her spine go rigid.
Natural.
Play it up.
Either answer would be a trap.
Hikari smiled, bright again. “Natural,” she said. “Seo-yeon unnie has been taking care of me since trainee days.”
The producer nodded, satisfied.
Seo-yeon forced a laugh. “She exaggerates.”
The producer beamed. “We love it. Fans love it. It’s like… comforting.”
Comforting.
Seo-yeon swallowed.
Because yes, it was comforting.
But comfort wasn’t supposed to be content.
Comfort wasn’t supposed to be clipped and captioned and argued over online.
Comfort wasn’t supposed to be a tool.
The producer’s gaze sharpened slightly, still smiling. “This era is special, right? It might be your last full group comeback. How do you feel about that?”
The van went very quiet.
The word last hung in the air like smoke.
The leader laughed nervously. “Ah, who knows? We’re still talking. We’re focusing on this comeback first.”
The producer nodded, the camera lingering.
Seo-yeon kept her eyes forward.
She refused to flinch.
But inside, the word dug into her.
Last.
Not only the group.
Maybe also the version of her life where Hikari was always within reach.
At the company building, they were funneled into a small meeting room “for a quick debrief.”
It was code.
PR.
They all knew.
The PR team sat at the table with their tablets, looking pleasant and deadly.
A woman with perfectly straight hair smiled. “Great job today. The whisper game is already getting attention.”
She slid a tablet across the table.
A clip.
Hikari leaning in.
Seo-yeon laughing.
The audience squealing.
The title in bold: SISTER DUO TOO CLOSE?
Seo-yeon’s stomach turned.
The PR woman tapped the screen. “This is trending. Fans love it, of course. But we need to keep it in the ‘sister’ lane. Understood?”
The leader nodded quickly. “Of course.”
The PR woman smiled. “Good. We’re going to lean into it slightly during promotions–because it’s effective. But you must keep it clean.”
Clean.
That word again.
Seo-yeon felt her mouth go dry.
The PR woman turned her gaze to Seo-yeon. “Seo-yeon-ssi, you’re very good at reacting in a cute way without being too much. Please keep that up.”
Seo-yeon nodded.
Then the PR woman looked at Hikari. “Hikari-ssi, your ‘sincere’ lines play well. Fans feel emotionally attached. But please be careful with certain phrases. ‘Saranghae’ is fine, but–”
She smiled wider. “–don’t overdo it off-camera.”
Hikari’s smile stayed in place.
Seo-yeon felt something inside her tighten.
The PR woman continued, tone casual. “Also, for your next livestream, we’d like to schedule a ‘sister moment’ segment. Maybe you adjust each other’s in-ears, maybe a behind-the-scenes hug. It will calm the fandom and redirect them from other rumors.”
Redirect.
As if their feelings were a traffic sign.
As if love could be used like PR sandbags.
The PR woman’s gaze sharpened slightly. “Do you understand?”
The leader answered quickly, “Yes.”
The members murmured agreement.
Seo-yeon’s throat tightened.
She knew she should nod.
She knew she should smile.
But the image of Hikari whispering “I love you” into her ear flashed like a wound.
And she suddenly couldn’t bear the thought of their tenderness being staged on command.
Seo-yeon lifted her chin slightly. “We can do it,” she said evenly. “But please–don’t make it too scripted. Fans can tell.”
The PR woman’s smile did not change.
But her eyes did.
“Of course,” she said sweetly. “We want it to feel natural.”
Natural.
Seo-yeon almost laughed.
The meeting ended with more instructions, more reminders, more smiles.
When they finally left the room, Seo-yeon felt like she’d been holding her breath for hours.
In the hallway, the members scattered.
Some went to practice.
Some went to fittings.
Some went to eat.
Seo-yeon walked toward the dance studio, but her feet slowed when she felt Hikari beside her.
Hikari didn’t speak.
Seo-yeon didn’t speak.
They walked in parallel silence.
At the corner of the hallway, Hikari murmured in Japanese, voice low.
「ねえ…」(nee…) – Hey…
Seo-yeon glanced at her.
Hikari’s eyes were serious. “Yesterday you said tomorrow,” she continued softly. “After schedule.”
Seo-yeon swallowed.
She looked around.
A staff member walked past.
A camera light blinked on a wall.
Seo-yeon’s chest tightened.
“Tonight,” she said in Korean, barely audible. “숙소에서.” (sukso-eseo) – At the dorm.
Hikari’s lips parted.
Relief flashed across her face.
Then she smoothed it away, the idol mask snapping back into place.
“Okay,” Hikari said in Korean, light enough to be harmless. “I’ll be there.”
Seo-yeon flinched internally at the word.
Not because it was wrong.
Because it was too small for what they were about to risk.
As they turned the corner, Seo-yeon caught sight of the same black-suited staff member from earlier.
He stood near the elevator bank.
Earpiece in.
Watching.
Seo-yeon’s spine went cold.
She kept walking.
She kept her pace steady.
She kept her face calm.
But inside, the static in her in-ear returned–thin and persistent–and she realized with a quiet, sinking certainty that the company wasn’t only building a narrative.
It was building a perimeter.
And she didn’t yet know how to keep Hikari safe inside it.