Chapter Text
Challenge Accepted
Yoo Jae-yi was the kind of superstar who didn’t just walk into a room—she made the room glow. Her voice, smooth and powerful, could send shivers down your spine. Her presence? Unmistakable. When Jae-yi stepped onto any stage, it felt like the entire world paused just to watch. She was everywhere. Billboards, magazine covers, the most exclusive parties—you couldn’t escape her, nor did anyone want to.
She had been in the spotlight for as long as anyone could remember, debuting as a child star and effortlessly outshining her peers. Unlike many who faded with age, Jae-yi only burned brighter, evolving from a precocious talent into an unstoppable force.
Yes, she came from a family with industry connections, but anyone foolish enough to call her a product of nepotism would be drowned out by the sheer weight of her success. Every hit song, every sold-out concert, every standing ovation—she had earned them all.
And her fans? Obsessed didn’t even begin to cover it. They camped outside venues for days, braving rain, snow, and exhaustion just for the chance to see her in person. Her name trended at the drop of a hat, her face was plastered on LED screens in every major city, and a single wave from her could send a crowd into chaos. Yoo Jae-yi wasn’t just a singer—she was a phenomenon.
Social media was a constant frenzy whenever she posted anything, even if it was just a photo of her coffee. If she made a new song, it went viral before the first beat dropped. People loved her, and she was adored by fans from every corner of the globe.
Her influence stretched far beyond the entertainment industry. Fashion designers scrambled to get her in their clothes, directors fought to cast her in their films, and brands threw millions at her to be their ambassador. Everyone wanted a piece of her.
But despite all the attention, the glowing compliments, and the constant stream of admirers, Yoo Jae-yi was… bored.
Yes, bored .
Everything felt like it was too easy. No one challenged her. No one could hold her attention for long—until now.
Enter Woo Seul-gi.
Woo Seul-gi was her newest bodyguard—young, sharp, and almost annoyingly good at her job. With a few solid years of experience under her belt, she carried herself with the kind of quiet confidence that made it clear she knew exactly what she was doing. In fact, she was so ridiculously competent, it was almost irritating.
But here’s the kicker: Seul-gi didn’t care about her fame. She didn’t flinch at Jae-yi’s golden smile, nor did she seem impressed by the constant stream of attention that followed her everywhere. To Seul-gi, Jae-yi was just another person to protect. That’s it. No sparkling admiration, no awe-filled gaze.
At first, Jae-yi had thought it was a fluke. Surely, Seul-gi was just a little too shy to be dazzled by her radiance. But day after day, it became clear—Seul-gi was unfazed. If Jae-yi cracked a joke, Seul-gi gave her that same polite, professional nod. If she tried to flirt (oh, she definitely tried), Seul-gi simply blinked and said, “I’m here to protect you, Miss Yoo. Nothing else.”
To most people, this would be annoying. To Jae-yi, it was a puzzle. And Jae-yi loved puzzles. She needed Seul-gi to crack.
So she started subtle. Like, really subtle.
Jae-yi groaned dramatically. “Ugh, there you go again. ‘Miss Yoo.’ Can you stop calling me that when we’re alone?”
Seul-gi didn’t respond. Which was an answer in itself.
Jae-yi smirked. “What, afraid if you call me by my name, you’ll start liking me?”
Seul-gi turned to her, expression blank. “I don’t think your name has that much power over me.”
Jae-yi grinned. “Yet.”
Seul-gi gave her a look, lips pressing tight before she looked down at her phone again, “Do you want anything special from the coffee shop, Miss Yoo?” Seul-gi’s voice was steady, her gaze not even lifting from her phone as she scrolled through messages.
Jae-yi tilted her head, a playful glint in her eyes. “Yeah. A smile, please,” she said, batting her lashes dramatically. “It’s the latest thing, I heard. Very exclusive.”
Seul-gi didn’t even look up. “I’ll get you your usual coffee order then,” she replied, coolly turning away.
Jae-yi leaned back in her chair, arms crossed. Well, that was anticlimactic. "My God, Seul-gi, you’re like a brick wall."
Seul-gi, without missing a beat, replied, “That’s my job.”
Jae-yi huffed in mock annoyance. “I’m starting to think you don’t even like me.”
Seul-gi paused, glancing at her over her shoulder. “I’m here to do my job, Miss Yoo. That’s it. I don’t need to like you to protect you.”
“Well, that’s cold,” Jae-yi said, feigning offense. She allowed the silence to hang in the air for a moment before leaning forward with a wicked grin. “I guess you’re not one of those who’ll be starstruck by my amazing talent, huh?”
Seul-gi’s eyes flickered for a fraction of a second, but her face remained as neutral as ever. “I’m not here to fawn over you, Miss Yoo.”
“Oh, I know. You’ve got that strong, stoic professional vibe going on,” Jae-yi drawled, her smirk widening. “But you’re telling me, if I give you the chance to sing with me, you wouldn’t at least hum a little tune for me? Most people would die to have such a chance, you know?”
“No.”
Jae-yi let out a theatrical sigh, slumping in her chair with exaggerated disappointment. “You're killing me, Seul-gi. You really are.”
The bodyguard didn’t even acknowledge the drama. She simply turned and left to get the coffee, unbothered, as if Jae-yi hadn’t just made an entire show of herself.
But that was the thing. The more Seul-gi ignored her, the more Jae-yi wanted her attention. She hadn’t felt this intrigued in a long time. Everyone else bent over backward to be near her, to please her, to fawn over her. But Seul-gi? She just didn’t care.
And it was driving Jae-yi mad in the best way possible.
As she watched Seul-gi retreat down the hall, her gaze followed every step the woman took. It was clear that this wasn’t going to be an easy game. But Jae-yi wasn’t used to losing. And she didn’t plan on starting now.
"Challenge accepted," she murmured to herself, a grin slowly spreading across her face.
—
The thing about Yoo Jae-yi was that she had a talent for making everything feel like a game. And when it came to Woo Seul-gi, the stakes were higher than ever. Each day brought a new challenge, a new way to get under Seul-gi’s skin without making it too obvious. Jae-yi wasn't a novice when it came to playing the long game, and Seul-gi was proving to be the ultimate prize.
Today was no different. They were backstage after a shoot, the chaos of the crew packing up around them, when Jae-yi decided to test a new theory. She sauntered over to Seul-gi, who was checking her phone, probably getting updates from the head security.
“Seul-gi,” Jae-yi began casually, leaning against the wall beside her. “Do you ever wonder what it’s like to be famous?”
Seul-gi didn’t even glance up. “I imagine it’s a lot of work,” she replied flatly.
“I’m talking about the fun stuff,” Jae-yi pressed on. “The red carpets, the endless parties, the adoring fans .”
At the mention of “adoring fans,” Seul-gi finally looked at her. Her eyes narrowed just slightly. “Sounds exhausting.”
Jae-yi snickered, pleased with the small crack in Seul-gi’s usual icy armor. “It can be,” she agreed, her tone lighter. “But what about you? Do you like being the person who stands on the sidelines, watching the chaos?”
Seul-gi tilted her head, studying her for a second. “I like my job just fine.”
It wasn’t much, but it was something. Jae-yi allowed herself a small victory. She wasn’t one to show her hand too early, but there was definitely something in the way Seul-gi’s eyes lingered on her that made her heart do a little flip.
“Fair enough,” Jae-yi said with a wink, “But hey, just so you know, I’m really great at making things fun. If you ever want to join the madness, you know where to find me.”
Seul-gi raised an eyebrow. “I’ll pass.”
“One day, Seul-gi,” Jae-yi replied, barely containing a grin, “One day, you’re going to realize you’re missing out.”
As Seul-gi turned away to attend to something else, Jae-yi stayed where she was, feeling that familiar pull of curiosity. Maybe Seul-gi wouldn’t crack today, but Jae-yi had all the time in the world.
—
Later that evening, Jae-yi sat across from her manager, Choi Kyung, in a sleek, dimly lit restaurant, picking at her plate of pasta with all the enthusiasm of someone being forced to do taxes. Kyung, ever the professional, was reviewing Jae-yi’s schedule while simultaneously giving her a look that could only be described as tired of your nonsense™ .
“So,” Kyung began, flipping a page in her planner, “what exactly is your endgame here?”
Jae-yi, who had just began dramatically swirling her wine, blinked. “Endgame?”
Kyung didn’t even dignify that with a response. She just stared, unimpressed.
Jae-yi sighed, setting down her glass with a clink. “Kyung, darling, you’re going to have to be more specific. I have so many games going on at once.”
Kyung exhaled sharply. “I’m talking about your new favorite pastime—tormenting your bodyguard.”
Jae-yi’s lips curved into a smirk. “Oh, so you have noticed.”
“Oh, please.” Kyung rolled her eyes. “Everyone noticed. You practically radiate mischief every time she’s in the room. It’s exhausting just to witness.”
Jae-yi leaned back in her chair, tapping a manicured finger against her chin. “You know, I think she might actually be a robot. No emotions, no reactions. I’m starting to suspect she charges in a docking station at night.”
Kyung snorted. “Or—and hear me out—she’s just doing her job , which does not include indulging your diva whims.”
Jae-yi pouted. “What, so I can’t have a little fun?”
“Fun?” Kyung raised an eyebrow. “You don’t do casual fun, Jae-yi. You fixate .”
Jae-yi gasped, placing a hand over her heart. “That is so unfair. I’m perfectly capable of casual fun.”
Kyung just sipped her wine. Silently. Judgingly.
“…Okay, fine,” Jae-yi admitted. “Maybe I am a little fixated. But in my defense, have you seen her? She’s so—”
“Uninterested?” Kyung supplied.
Jae-yi pointed her fork at her. “Mysterious. She’s mysterious. And you know how I love a challenge.”
Kyung groaned, rubbing her temples. “So what’s the goal here? To annoy her until she quits?”
Jae-yi gasped again, more dramatically this time. “Excuse me, Kyung! I would never drive away my beloved Seul-gi!”
Kyung narrowed her eyes. “Since when is she ‘beloved’?”
Jae-yi just smiled.
Kyung sighed, closing her planner with a definitive snap . “You know what? I don’t care. This isn’t my problem. Just don’t get yourself into a scandal, and try not to make my job harder than it already is.”
Jae-yi grinned, raising her glass in a toast. “I make no promises.”
Kyung clinked her glass against Jae-yi’s anyway, muttering, “Of course you don’t.”
—
The problem with Yoo Jae-yi was that once she set her sights on something—or in this case, someone—she didn’t just give up . No, that wasn’t in her DNA. She was a superstar, adored by millions, feared by industry executives, and responsible for at least three minor PR disasters that Kyung had barely managed to clean up.
Woo Seul-gi, however, remained a walking enigma.
Jae-yi had performed in front of a hundred thousand people without breaking a sweat, but somehow, Seul-gi’s complete and utter lack of reaction to her was infuriating . No blushing, no flustered glances, not even a begrudging smirk at her ridiculous antics.
Which was why, naturally, Jae-yi had decided that today was the day she would make something happen.
The opportunity presented itself when she found out Seul-gi had never— never —attended one of her concerts before.
Unacceptable!
So here they were, inside Jae-yi’s ridiculously spacious private rehearsal studio, surrounded by walls of floor-to-ceiling mirrors and a sound system powerful enough to make the ground vibrate.
Jae-yi, in all her subtlety, had positioned herself in the center of the room, lazily spinning a microphone between her fingers while Seul-gi stood by the door, arms crossed, expression blank.
“Alright, since you’ve never seen me perform live,” Jae-yi began, stretching dramatically, “consider this a personal, VIP show. No one else gets this treatment, you know.”
Seul-gi didn’t move. “I don’t think this is necessary.”
Jae-yi tsked, shaking her head. “Oh, Seul-gi. It’s so necessary. How can you protect me properly if you don’t even understand the full magnitude of my talent?”
Seul-gi’s face remained unreadable. “I don’t think your high notes are a security risk.”
Jae-yi gasped. “You don’t know that! What if my voice is so powerful it causes mass hysteria?”
“I’ll take my chances.”
Jae-yi grinned. Oh, this was going to be fun.
Without another word, she signalled for the music to start. The intro to one of her biggest hits flooded the room, and in an instant, Jae-yi transformed.
One second, she was playfully teasing. The next, she was electric .
She moved with the kind of effortless confidence that made people fall in love with her through a screen. Her voice, smooth and commanding, filled every corner of the room as she sang, every note precise, every movement calculated yet natural.
It was impossible not to be captivated by her.
…Unless, of course, you were Woo Seul-gi.
Jae-yi had performed for royalty. She had reduced interviewers to stammering messes with a single glance. And yet, Seul-gi just stood there , arms still crossed, watching her like she was analyzing security footage.
Jae-yi, never one to back down from a challenge, decided to up the ante.
During the chorus, she strutted toward Seul-gi, her voice dipping into a sultry lower register, her gaze locked onto her target. When she reached her, she leaned in just close enough to test boundaries.
Nothing.
No blush. No startled reaction. Not even a twitch.
Jae-yi pulled back slightly, lips curving into a smirk. She finished the performance and then walked back to Seul-gi again.
“So, what do you say? Nothing? Not even a little impressed?”
Seul-gi blinked once. “Your stage presence is adequate.”
Jae-yi stumbled . She actually stumbled .
Adequate? Adequate ?!
Jae-yi narrowed her eyes. “You do know that people sell their kidneys for front-row tickets to my concerts, right?”
Seul-gi gave a nonchalant shrug. “Seems excessive.”
Jae-yi nearly choked.
Okay. Fine. Two could play this game.
She took a slow step forward, tilting her head. “Seul-gi,” she hummed, “if I didn’t know my craft any better, I’d think you hate my music”
For the first time, Seul-gi hesitated. It was barely there—just the slightest shift in her posture—but Jae-yi caught it.
Oh. Interesting.
Seul-gi exhaled slowly, her voice as steady as ever. “I’m here to do my job, Miss Yoo. Whether I like your music or not is irrelevant.”
Jae-yi’s smirk grew. “So you do have an opinion.”
Seul-gi gave her a pointed look. “I didn’t say that.”
“But you didn’t deny it.”
A pause. Then a blink before she looked away.
Jae-yi’s heart thrilled at the tiny flicker of something in Seul-gi’s eyes before it was swiftly buried under that damn unreadable expression again.
But a win is a win. Jae-yi would take it.
—
Jae-yi sat in her dressing room after rehearsal, humming to herself as she scrolled through her phone. She hadn’t stopped grinning since that moment with Seul-gi.
It wasn’t much —just a fraction of hesitation, just the slightest hint that Seul-gi wasn’t as unaffected as she pretended to be. But something is always better than nothing.
Just then, a notification popped up. A message from Joo Ye-ri, her longtime actress friend and professional chaos enthusiast.
Ye-ri: Heard from Kyung that you’re still tormenting your bodyguard. Update me.
Jae-yi smirked before typing back.
Jae-yi: I think she’s starting to crack.
Ye-ri: …Define “crack.”
Jae-yi: She blinked.
Ye-ri: …That’s it?
Jae-yi: It was a very important blink.
Ye-ri sent back a series of laughing emojis.
Ye-ri: You’re obsessed.
Jae-yi just smiled to herself, tossing her phone onto the couch.
Yeah. Maybe she was. But she was very good at getting what she wanted.
And right now? She wanted Woo Seul-gi.
—
If there was one thing Yoo Jae-yi excelled at—besides, of course, being breathtakingly talented—it was persistence.
Subtlety? Questionable. But persistence? Unmatched.
Seul-gi, however, remained as immovable as a reinforced steel vault. Which was why Jae-yi, being the tactical person that she was, had started experimenting.
Today’s test?
Physical proximity.
Jae-yi didn’t outright invade Seul-gi’s space—no, that would be too obvious (and a massive HR violation, a voice spoke in Jae-yi’s mind that sounded suspiciously like Kyung). Instead, she drifted .
If they were walking through a hallway? Jae-yi drifted just close enough for their arms to almost brush.
If they were in the car? Jae-yi drifted ever so slightly in her seat, a tiny shift toward Seul-gi’s side.
And right now?
Right now, they were in the elevator of Jae-yi’s apartment building, and Jae-yi was standing just a little too close. Not close enough to be inappropriate—no, no, she was a professional (debatable). Just close enough that when the elevator shifted slightly, her arm grazed Seul-gi’s shoulder.
A perfectly innocent accident.
Seul-gi didn’t move. Didn’t react.
Jae-yi waited.
Nothing.
Okay. Fine . She could play the long game.
The elevator doors opened, and Seul-gi stepped out first, scanning the hallway with that practiced, disciplined sharpness. Jae-yi followed, hands in her pockets, humming a tune as they approached her penthouse door.
“You know,” Jae-yi mused, “most people would kill to be in your position.”
Seul-gi’s eyes flicked toward her, unimpressed. “As your bodyguard?”
Jae-yi smirked. “As the person who gets to live in my presence every day.”
Seul-gi’s silence was louder than any response.
Jae-yi grinned, unlocking the door. “You know what your problem is, Seul-gi?”
“I didn’t realize I had any problems,” Seul-gi replied smoothly.
“You don’t appreciate me.” Jae-yi stepped inside, dramatically placing a hand over her heart. “It’s tragic, really. People cry just seeing me on stage, but you? Not even a blink .”
Seul-gi followed her in, checking the space as always before locking the door behind them. “If it makes you feel better,” she said, completely straight-faced, “I have blinked in your presence.”
Jae-yi snorted .
Oh, she was good . But Jae-yi was better .
She flopped onto the couch, stretching out lazily. “You know, Seul-gi,” she drawled, “if I didn’t know any better, I’d say you’re avoiding getting to know me.”
Seul-gi, already positioning herself near the entrance like a perfect professional, didn’t even look up. “I know you just fine, Miss Yoo.”
Jae-yi clicked her tongue. “Oh, really?”
Seul-gi nodded. “You’re incredibly persistent, you have an exaggerated sense of self-importance, and you’re testing my patience daily.”
Jae-yi blinked. Then grinned.
“So you do think about me.”
For the briefest second, Seul-gi hesitated.
It was small —a fraction of a moment where Jae-yi swore she saw the tiniest flicker of exasperation in Seul-gi’s eyes before it was smoothed over.
Jae-yi beamed . “I knew it.”
Seul-gi exhaled. “Good night, Miss Yoo. I will see you in the morning.”
Jae-yi laughed as Seul-gi walked toward the door like she was actively trying to detach herself from this situation.
But Jae-yi? Oh, she was having so much fun.
—
Choi Kyung had two rules in life:
- Never bet against Jae-yi in an argument (she would win through sheer stubbornness).
- Never get involved in Jae-yi’s latest obsession.
Right now, rule #2 was becoming increasingly difficult.
Kyung sat in her office, reviewing upcoming schedules, while Joo Ye-ri lounged across from her, looking way too entertained.
“So,” Ye-ri said, sipping her coffee with an amused smirk, “how long before Jae-yi makes Seul-gi snap?”
Kyung pinched the bridge of her nose. “God, I hope never. Do you know how hard it was to find a bodyguard who wouldn’t immediately fall under Jae-yi’s spell?”
Ye-ri grinned. “Yeah, but that’s what makes this so fun .”
Kyung groaned. “You would enjoy this.”
Ye-ri shrugged. “What can I say? It’s like watching an apex predator fail at hunting.”
Kyung sighed, rubbing her temples. “I just don’t want to deal with the fallout.”
“Then don’t.” Ye-ri leaned back, crossing her legs. “Jae-yi’s an adult. Let her figure it out.”
Kyung narrowed her eyes. “You just want to watch the drama unfold.”
Ye-ri’s smirk was positively criminal . “Obviously.”
Kyung groaned again. She needed a raise.
—
Jae-yi stared at her phone.
She was currently resisting the urge to message Seul-gi. Not for anything important or inappropriate , of course—just a friendly little check-in.
Like:
Jae-yi: Do bodyguards have a rule against complimenting their clients?
Or maybe:
Jae-yi: Be honest. I’m the most interesting person you’ve ever protected, right?
Or even:
Jae-yi: Are you awake? Just wondering if you’re dreaming about me.
…Okay, maybe not that last one.
Instead, she settled for a simple:
Jae-yi: Sleep well, Seul-gi.
She watched the screen.
Message seen. No reply.
Of course. Jae-yi grinned to herself. That was fine . She had all the time in the world.
And Woo Seul-gi? Woo Seul-gi was going to crack .
—
Yoo Jae-yi was a lot of things—world-class singer, fashion icon, queen of the entertainment industry. But above all, she was a woman on a mission .
That mission? Woo Seul-gi.
And she was doing it right. Not too obvious, not too direct. Just enough to keep Seul-gi guessing.
Which was why Jae-yi was currently…
“Miss Yoo.”
Jae-yi casually turned her head from where she was—standing directly next to Seul-gi at the gym, despite there being an entire empty row of treadmills.
“Yes?” she answered innocently.
Seul-gi’s expression was flat. “Why are you here?”
Jae-yi feigned innocence. “Am I not allowed to work out?”
Seul-gi’s eyes slowly traveled from Jae-yi’s pristine, untouched workout clothes to the 0.0 km flashing on her treadmill screen.
Jae-yi followed her gaze.
…Okay. Maybe she had forgotten to turn it on. But that wasn’t the point .
The point was that Seul-gi looked effortlessly cool in her workout gear, with her toned arms and ridiculous focus, and Jae-yi felt personally attacked by how unaffected she still was.
“You’ve been standing there for ten minutes,” Seul-gi said, adjusting the speed on her treadmill.
Jae-yi smiled. “I was appreciating the view.”
Seul-gi stopped pressing buttons.
A brief silence.
Jae-yi swore she saw the tiniest twitch in Seul-gi’s jaw before the woman exhaled and ignored her.
Jae-yi grinned. Progress.
—
Choi Kyung was so close to walking into the ocean.
She had just sat down in Jae-yi’s dressing room when the singer strolled in, looking suspiciously smug.
Ye-ri, who had made herself at home on Jae-yi’s couch, raised a brow. “You look pleased with yourself.”
Jae-yi collapsed onto the chair, stretching out like a cat. “What can I say? My plan is working .”
Kyung, who had absolutely no interest in hearing about this, immediately tried to redirect. “We have a meeting in—”
“She’s not unaffected,” Jae-yi cut in, practically glowing with satisfaction. “I saw it today. A crack. A tiny one, but it was there.”
Kyung pressed her fingers against her temple. “Please tell me you didn’t harass your bodyguard.”
Jae-yi scoffed. “Of course not. I was simply… around.”
Ye-ri, looking far too entertained, asked, “What happened?”
Jae-yi smirked. “Let’s just say I may have caught her off guard.”
Kyung let out a long sigh. “You’re going to give that woman an aneurysm.”
Jae-yi waved her off. “Nonsense. It’s healthy to experience emotions.”
Kyung stared . “Oh my god, Jae-yi, she’s your bodyguard, not your entertainment.”
Jae-yi simply hummed, swirling her water bottle like it was an expensive glass of wine.
Ye-ri grinned. “Ignore her, Jae-yi. I support this.”
Kyung groaned. “Of course you do.”
—
Seul-gi sat in her car, gripping the steering wheel.
She was a professional. She had trained for years. Nothing rattled her. And yet.
"I was appreciating the view."
Seul-gi exhaled. Deeply.
This was fine. This was normal . Yoo Jae-yi was just being Yoo Jae-yi.
Except, nothing about this was normal. Because Seul-gi had grown up listening to Jae-yi’s voice through cheap orphanage speakers, static-ridden radios, and secondhand MP3 players that barely worked. She knew every note, every lyric, not because she had the luxury of attending concerts, but because music— Jae-yi’s music —had been one of the few constants in her life.
But that was a long time ago.
Seul-gi had made it out. She clawed her way up, got an education, dragged herself out of the mess her life had almost become. She cured her little drug problem, buried her past where it belonged, and landed a solid job at a security company. Eventually, that job led her here—what many would call a dream position. Personal bodyguard to Yoo Jae-yi.
She hadn’t had many expectations going in. Keep the star safe, stay professional, get paid. Simple.
What she hadn’t expected was this version of Jae-yi. Not the ethereal, untouchable diva she had imagined from a distance, but someone dangerously charming, infuriatingly persistent, and far too amused every time Seul-gi maintained her professional cool.
Jae-yi flirted like it was a second language. She treated Seul-gi’s resistance like a game. And for reasons Seul-gi couldn’t understand, she seemed weirdly determined to get a reaction out of her.
Seul-gi didn’t know how to handle this.
But she was smart enough to know that giving in to a rich, spoiled superstar’s whims?
Never a good idea.