GHOST PROTOCOL- Park Jongseong fanfic
Pairings: Dom! Jay x Reader
Summary: Working under the agency's most feared commander, Park Jongseong (Jay), was never supposed to be easy. He was cold, demanding, and impossible to read, while you somehow found yourself falling for him anyway. As dangerous missions bring you closer, the walls around Jay slowly begin to crack, proving that sometimes the quietest hearts love the hardest.
Warnings: smut, blowjob, tit play, nipple play, v sucking/licking, submissive jay, riding. (In the next part, not this one)
"He never knew how to love loudly. So he loved quietly, in ways only she would learn to notice."
The elevator doors slid open with a soft chime, revealing another floor that looked exactly like the last—gray walls, polished concrete, and people dressed in black moving with quiet urgency.
You adjusted the strap of your bag as you stepped out, trying your best not to stare.
Everyone here looked like they knew exactly what they were doing.
You, on the other hand, were still wondering how your life had turned upside down in less than forty-eight hours.
A week ago, your biggest concern had been finishing a cybersecurity report before the deadline.
Now you were standing inside one of the country's most classified intelligence agencies after accidentally uncovering encrypted files that someone clearly never wanted found.
You turned at the sound of your name.
A woman in a navy suit approached with a polite smile, holding a tablet against her chest.
"I'm Agent Han. Follow me."
You nodded quickly before falling into step beside her.
The hallway seemed endless. Offices lined either side, agents disappearing in and out of rooms without sparing either of you a second glance. Phones rang constantly, keyboards clicked in the background, and somewhere farther down the corridor someone was already arguing over a mission report.
It was nothing like the movies.
Agent Han stopped outside a pair of frosted glass doors.
"They're waiting for you."
She simply smiled before pushing the door open.
Every conversation inside the room came to a stop.
There were six people seated around the table, files spread out in front of them.
One of them didn't look at you at all.
He stood near the window with his hands tucked into the pockets of his black slacks, eyes fixed on the city stretching below.
Even from where you stood, something about him felt distant.
Like he was physically in the room but mentally somewhere else.
"Agent Park," Agent Han called.
Dark eyes landed on you for exactly two seconds before shifting to the director.
A folder was placed on the table.
"You'll be working together."
Jay glanced down at the file before closing it without opening a single page.
"I'm not taking the assignment."
The director leaned back in his chair.
"You don't have a choice."
Then, for the first time, Jay looked directly at you.
As if he was already calculating how much trouble you were going to cause.
You offered an awkward smile anyway.
For a second, you weren't sure you'd heard him correctly.
The director pinched the bridge of his nose, clearly expecting this reaction.
"You've refused this assignment three times in the last hour."
"And I'll refuse it a fourth."
You glanced between the two men, unsure if you were supposed to say something or quietly disappear.
Agent Han gave you a sympathetic smile.
"It feels a little personal," you muttered under your breath.
A quiet snort came from the other side of the table.
One of the younger agents quickly hid his smile behind a coffee cup.
He kept his attention on the director.
"She has no field training."
"Which is exactly why she needs you."
"I protect intelligence."
The director raised an eyebrow.
"You protect whatever I assign you."
Another silence settled over the room.
Jay let out a slow breath before reaching for the folder he'd ignored moments earlier.
Your photo stared back at him.
Pages of background information followed—education, certifications, work history, security clearance.
His eyes paused on the final page.
The director's lips curled into the faintest smile.
You barely had enough time to process anything before Agent Han was guiding you through another maze of hallways.
"I thought he didn't want the assignment."
"The part about someone trying to kill me?"
"Agent Park doesn't like unnecessary casualties."
...that answer felt strangely disappointing.
The agency issued you an access card, a temporary apartment inside the secure complex, and a phone that looked completely ordinary until Agent Han casually informed you it could erase itself in under five seconds.
By the time everything was finished, your head was spinning.
You stepped out into the hallway, grateful for the quiet.
It lasted all of ten seconds.
Jay stood a few feet away, sleeves rolled to his forearms, one hand holding two paper cups of coffee.
You looked down at your shoes.
"...And I still walk loudly?"
"I've known you for three hours."
"I noticed in three seconds."
He held one of the cups toward you.
"I thought you didn't like me."
"That's... somehow worse."
"It wasn't meant to be better."
You accepted the coffee anyway.
It was exactly how you liked it.
You stared at the cup before looking back at him.
Jay took a sip from his own coffee, already walking down the hallway.
"You picked up three sugar packets at reception."
You stood there for a moment, watching him disappear around the corner.
From somewhere ahead, his voice echoed down the hallway.
Then, despite yourself, you smiled.
By the end of your second week, you'd come to one very unfortunate conclusion.
Working for Park Jongseong was exhausting.
Nothing you did seemed to satisfy him.
You organized mission files.
"They're in chronological order."
"They should be categorized by operation."
That was the closest thing to a compliment you'd ever received.
The next day, you brought him coffee.
He didn't even look up from the report in front of him.
"I didn't ask for coffee."
"I know. You looked tired."
You quietly took the cup back before placing it on your own desk instead.
Even your coworkers had started noticing.
One afternoon, as Jay stepped into a meeting with the directors, Sunghoon leaned against your desk.
You looked up from your laptop.
"I've never seen someone try this hard to impress him."
"I'm not trying to impress him."
Sunghoon gave you a look.
"You reorganized his entire office yesterday."
"...It needed reorganizing."
"You color-coded his reports."
"...Because they were a mess."
"You learned how he likes his documents printed."
"...Double-sided saves paper."
"Keep telling yourself that."
Your face warmed as he walked away.
Later that evening, everyone had already left.
You were finishing the last report when Jay walked out of his office.
"You should've gone home an hour ago."
"You finished your work two hours ago."
"...How do you know that?"
He nodded once before heading toward the elevator.
You waited until the doors closed.
Then you let out a long sigh.
You shoved another file into the cabinet.
"Cold, emotionless robot."
"Does he wake up every morning and think, 'How can I make everyone's life miserable today?'"
You mimicked his deep voice under your breath.
"'The margins are wrong.'"
You rolled your eyes dramatically.
"Just say thank you once, you grumpy—"
"The margins were wrong."
The elevator doors had opened again.
Jay stood exactly where you'd left him.
The other holding the folder he'd apparently forgotten.
Your soul left your body.
"...How long have you been standing there?"
You considered every possible escape route.
Jay looked at you for a moment before walking over to your desk.
He placed the folder down.
Then, without changing his expression—
"The report was well done."
"You wanted a thank you."
He adjusted the cuff of his sleeve.
Leaving you standing in the middle of the office, wondering if you'd imagined the entire conversation.
The next morning, you avoided him.
The second you stepped into the office, you spotted him through the glass walls of his office, already reading through a stack of mission reports.
You immediately turned around.
You nearly jumped at the sound of Sunghoon's voice.
"You've been here for thirty seconds."
"I've embarrassed myself enough for the rest of the year."
Before you could answer, Jay's office door opened.
Sunghoon gave you a look that practically screamed good luck.
You shot him one that said if I don't come back, tell my mom I tried.
Taking a deep breath, you knocked lightly before stepping inside.
Jay didn't answer right away.
He continued reading the document in his hands, flipping through another page before finally setting it aside.
You quietly closed the door behind you.
The office suddenly felt much smaller.
"You've been avoiding me."
"You walked into the office, saw me, and turned around."
You searched desperately for an excuse.
"...Checking the emergency exit."
"The emergency exit is behind you."
"You don't need to worry about yesterday."
"You've looked at everyone in this room except me."
"...There are only two people in this room."
"...Can we please pretend that never happened?"
You groaned, covering your face.
"I'm going to have nightmares about this."
"You underestimate my ability to overthink."
For the first time, Jay's expression softened.
But there was something less guarded in his eyes.
"I've been called worse."
"...Did they also compare you to household appliances?"
"Then I might actually be the worst."
"I've also been called a robot."
"...Was I original, at least?"
"The vending machine comment was new."
Heat rushed to your cheeks.
"I knew I should've kept that one to myself."
"What were you expecting?"
"Maybe a thirty-minute presentation on respecting your boss?"
Jay reached for another file.
"If I disciplined every employee who complained about me, Human Resources would never leave my office."
Jay looked up for a brief second.
"...You should laugh more."
The words left his mouth so casually that he didn't seem to realize he'd said them.
He picked up his pen again.
You stood there for another second before quietly nodding.
As you closed the door behind you, you leaned against the wall outside, pressing a hand to your chest.
Inside the office, Jay remained staring at the report in front of him.
He hadn't read a single word since you'd left.
You had never called in sick.
Which was exactly why everyone noticed when your desk sat empty Monday morning.
"Has anyone heard from Y/N?" Sunghoon asked, glancing toward your empty chair.
"She texted HR," another agent replied. "She said she wasn't feeling well."
"Did she send the surveillance analysis?" Jay asked, his eyes never leaving the report in front of him.
Silence settled over the office.
"She said she'd finish it over the weekend."
Jay closed the file in front of him.
"It's needed for tomorrow's briefing."
With that, Jay grabbed his car keys and left.
The pain had started before sunrise.
By noon, you could barely get out of bed.
Your heating pad rested over your stomach while your phone buzzed somewhere under the blanket.
The last thing you wanted was to answer questions when you could barely think straight.
A knock echoed through your apartment.
Slowly, you dragged yourself out of bed, wrapped the blanket around your shoulders, and made your way to the door.
The moment you opened it, you froze.
His suit looked as immaculate as always, one hand holding a folder while the other rested casually in his pocket.
His expression didn't change.
"You didn't answer your phone."
His eyes lingered on your face.
You opened your mouth to argue, but another cramp twisted through your stomach.
You instinctively pressed a hand against your abdomen.
You hesitated before stepping aside.
"Sorry... the apartment's a little messy."
He stepped inside, quietly taking in the room.
A mug of tea sat untouched on the coffee table.
Painkillers rested beside it.
The heating pad was still plugged into the couch.
"What did the doctor say?"
"You've been in pain all day."
Jay didn't look uncomfortable.
He simply nodded once, as if you'd told him you had a headache.
"I know it's embarrassing."
"I just... didn't think I should tell my boss."
"But you also don't have to pretend you're fine."
"You've been staying late almost every night."
"You've skipped lunch twice this week."
"You've looked tired since Thursday."
You let out a small laugh.
"...Do you pay this much attention to everyone?"
"I pay attention to my team."
The smile on your face softened.
Jay glanced at the untouched tea before walking toward the kitchen.
"It's... on the counter."
Without another word, he filled it with water and switched it on.
You watched him in complete confusion.
"That wasn't what I asked."
A few minutes later, he returned with a fresh cup of warm tea and placed it carefully in front of you.
"I can finish it tonight."
You couldn't help smiling into your cup.
Jay picked up the folder he'd brought with him.
"I'll inform HR you'll be out tomorrow as well."
"I don't want to fall behind."
He walked toward the door before stopping.
Without turning around, he spoke.
The front door clicked shut.
You looked down at the warm tea in your hands.
For someone everyone described as cold...
He had remembered to add exactly two spoons of honey.
You'd only mentioned once, weeks ago, that it helped when you weren't feeling well.
You hadn't realized he'd been listening.
The next morning, you woke up to the sound of your phone vibrating against the nightstand.
You reached for it with a groan.
His reply came almost instantly.
Sunghoon
Boss postponed the briefing.
Your eyebrows knitted together.
Sunghoon
He said the surveillance analysis wasn't urgent.
You stared at the screen.
That didn't sound like Jay.
Before you could reply again, another message popped up.
Sunghoon
Also... don't come in tomorrow.
Sunghoon
"Doctor's orders," according to him.
You hadn't even seen one.
Two days later, you finally returned to the office.
The moment the elevator doors opened, several heads turned your way.
"There she is," Sunghoon said, leaning back in his chair.
"You look less like a ghost."
"I mean it as a compliment."
You laughed softly before placing your bag on your desk.
You'd barely logged into your computer when Jay's office door opened.
You looked up immediately.
A few agents exchanged knowing glances.
Sunghoon gave you a dramatic salute.
You rolled your eyes before walking toward Jay's office.
You stepped inside, quietly closing the door behind you.
Jay looked up from the documents spread across his desk.
The question caught you off guard.
He studied you for a second before giving a small nod.
He reached into one of the desk drawers.
"I reviewed your surveillance analysis."
He slid the file across the desk.
"You'll find them useful."
You looked down at the folder.
There were only two sticky notes attached.
Your lips parted slightly.
A smile tugged at the corners of your lips.
"Don't force yourself to come to work if you're unwell."
He looked almost reluctant to continue.
You couldn't stop yourself from smiling.
You bit the inside of your cheek to keep from smiling any wider.
Jay looked back down at the report.
As soon as the office door closed behind you, Sunghoon appeared beside your desk.
"What did the boss want?"
You tried your best to keep a straight face.
"He told me to eat breakfast."
"He voluntarily gave life advice?"
Sunghoon looked toward Jay's office, then back at you.
"...Either I'm hallucinating..."
He narrowed his eyes suspiciously.
"...or our boss is slowly becoming human."
A little louder than usual.
Behind the glass walls of his office, Jay looked up from his paperwork.
He listened until your laughter faded.
The office buzzed with more energy than usual.
Agents moved quickly between departments, voices echoing through the hall as mission files were passed around.
The moment you stepped off the elevator, Sunghoon looked up from his desk.
He handed you a black folder.
"Boss wants you in Briefing Room Three."
"...That's not exactly helpful."
You slipped into the briefing room just as the meeting began.
Jay stood at the front, a map projected onto the screen behind him.
Several agents were already seated.
He looked up briefly when you entered.
You quietly took the nearest seat.
Jay continued the briefing.
"Our target will attend a charity gala tomorrow evening."
Photos appeared on the screen.
"Intelligence suggests he'll be carrying a storage device containing financial records connected to the organization."
You scribbled notes as he spoke.
"The device must be copied without alerting the target."
One of the agents raised a hand.
"Who's going undercover?"
Jay pressed another button.
A photo of a ballroom appeared.
He listed a few more names.
"You also spent three years studying behavioral profiling."
"...That was a university elective."
"I've never been undercover before."
Sunghoon leaned over, whispering just loud enough for you to hear.
Jay looked in your direction.
You forced an awkward smile.
The meeting ended a few minutes later.
As everyone filtered out, you remained seated.
He closed the folder in his hands.
"Because you're the only person who's met the target in person."
"You recognized him before facial recognition did."
"You notice details others miss."
The words caught you off guard.
It wasn't exactly praise...
"Report to training at eighteen hundred."
He walked past you before adding—
"And bring comfortable shoes."
He didn't even slow down.
The door closed behind him.
You stared after him for several seconds.
"...I absolutely do not know how to dance."
From somewhere down the hallway...
You could've sworn you heard Sunghoon laughing.
The rest of the week passed quietly.
You were beginning to think Jay had reverted back to his usual self.
The brief concern he'd shown after you returned had disappeared behind neatly pressed suits, short responses, and endless paperwork.
He looked up from his laptop.
"What else were you expecting?"
"I don't know... maybe a 'How are you?'"
You sighed dramatically before leaving his office.
Sunghoon, who had been passing by at the perfect moment, smirked.
"You literally walked in looking excited and came out looking defeated."
"I just wanted him to act... normal."
"You'll be waiting a long time."
Just then, Agent Han stepped into the department.
"Conference room. Everyone."
The room quickly filled with agents.
A map appeared on the screen.
"The agency received intelligence late last night," Agent Han began. "A diplomatic charity gala is being used as a meeting point for several high-value targets."
"We need someone inside."
Jay stood beside the screen, arms folded.
"This operation requires two people."
His eyes scanned the room.
He glanced at the file in his hand.
"You've translated documents for one of the attendees before. He knows your face."
"I've never been on a field mission."
Sunghoon leaned over just enough for you to hear.
"I think I'm going to throw up."
"I've never done this before."
Before Sunghoon could reply, Jay spoke.
"Training starts in fifteen minutes."
The room emptied almost immediately.
You followed everyone else toward the training floor, your nerves growing with every step.
The ballroom they'd recreated looked almost real.
Crystal chandeliers hung from the ceiling, music played softly through hidden speakers, and agents dressed in formal attire wandered around pretending to be guests.
You stopped in the doorway.
"It has to be," Jay said, walking past you. "If you can handle this, you can handle the real thing."
You nodded, trying to ignore the knot in your stomach.
Agent Han handed you a small velvet box.
You clipped it into place.
"Testing," Sunghoon's voice crackled through your ear.
"Good. Now don't embarrass us."
"I suddenly can't hear you."
"You'll be attending as my partner."
"It will attract less attention."
You silently reminded yourself of that.
An instructor approached with a polite smile.
"Before we begin, you'll need to learn the opening dance."
You slowly turned toward Jay.
"Please tell me you don't dance either."
The instructor gestured toward the center of the room.
You stared at it for a second before placing your hand in his.
Far warmer than you'd expected.
Your heart gave an annoyingly noticeable skip.
"Relax," he said quietly.
"Of embarrassing myself."
His expression softened ever so slightly.
"You sound very confident."
"I've seen you under pressure."
"That's... surprisingly encouraging."
The instructor positioned Jay's free hand lightly against your upper back before adjusting your posture.
"If you leave that much space between you, everyone will know you're pretending."
Heat rushed to your cheeks as you took a hesitant step closer.
You could smell his cologne now.
"Eyes on your partner," the instructor reminded.
Jay was already looking at you.
For a brief second, neither of you spoke.
You managed exactly three steps before your heel caught on his shoe.
Jay caught you before you could lose your balance completely.
His hand tightened instinctively around yours.
"I just assaulted my boss."
"You stepped on my foot."
The corner of his mouth twitched.
Gone almost as quickly as it appeared.
This time, when the music started again, your feet found the rhythm a little easier.
Neither of you noticed that, from across the room, Sunghoon had stopped pretending to read the mission file.
He leaned toward Agent Han with a knowing smile.
Agent Han glanced at Jay and you moving carefully across the floor.
"I've never seen him this patient with anyone."
Training lasted another hour. By the end of it, your feet were sore, your head was spinning, and Jay had corrected your posture more times than you could count.
You sighed dramatically. "I thought I finally got it."
"You looked at the floor."
"I was making sure I didn't step on you."
"You'll miss what's happening around you."
You muttered something under your breath as you fixed your stance.
"I liked it better when you barely talked."
You looked up at him with a groan. "...I'm starting to think you hear everything."
That earned the smallest shake of his head before he walked away to speak with Agent Han. You watched him from across the room until a familiar voice interrupted your thoughts.
Sunghoon appeared beside you, following your line of sight with an amused smile.
"I'm literally just... thinking."
He laughed. "Whatever helps you sleep at night."
Before you could defend yourself, Agent Han called everyone's attention.
The room immediately fell silent as several photographs were spread across the table.
"Our original target changed his plans."
Jay stepped forward. "What changed?"
"He'll be arriving with his daughter."
"She refuses to leave his side."
Another photograph slid across the table. The woman looked to be around your age—elegant, confident, and impossible to overlook.
"The target trusts almost no one," Agent Han explained. "But he trusts her."
Jay studied the file. "What does that have to do with us?"
Agent Han looked directly at you.
"She specifically requested to meet the analyst who translated her father's charity proposal six months ago."
"You signed the translation with your initials."
"I didn't think anyone would notice."
A quiet silence settled over the room.
"This changes the operation," Jay said.
"It does. You'll spend most of the evening with the daughter."
"And Agent Park?" Sunghoon asked.
"He'll remain close enough to intervene if necessary."
You frowned before you could stop yourself.
"So... we won't actually be together?"
"Only when absolutely necessary."
For reasons you couldn't explain, that answer disappointed you. Jay didn't seem to notice. He was already marking new routes across the map, mentally rebuilding the entire operation.
The night before the gala, almost everyone stayed late.
You were reviewing guest profiles for what felt like the hundredth time when a file landed gently on your desk. Looking up, you found Jay standing there.
You opened the folder to find a photo of a midnight-blue evening gown.
"It has reinforced stitching."
"...That's the first thing you tell me?"
"It also has a concealed communication device." You laughed quietly.
"...Still not 'it looks nice'?"
Closing the folder, you smiled. "Thank you."
As he turned to leave, you spoke again. "...Are you nervous?"
He stopped. "I don't get nervous."
"Not even before missions?"
"You must have been scared at least once."
He was silent for a moment before looking back at you. "I am when variables change."
"What kind of variables?"
He held your gaze for a second longer than usual.
"...The unpredictable ones."
Before you could ask what he meant, alarms suddenly blared throughout the building. A sharp red light flashed across the ceiling as every agent shot to their feet.
Your heart leaped into your throat as people rushed in every direction. You stood frozen, trying to process what was happening.
Jay's voice cut through the chaos.
You turned just as every light on the floor went out, plunging the room into darkness. Somewhere nearby, a gunshot echoed, followed by a scream.
Before panic could take over, a familiar hand found yours in the dark.
Jay's voice was low, calm, and impossibly close. "Don't let go."
For the first time, it didn't sound like an order from your boss.
It sounded like a promise.
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