Boss, Our Promise was Different (Completed Main Story) - Chapter 10
Jae In jumped up and answered.
“What! Absolutely not. He’s just a colleague—just a coworker.”
—Who is he? I’ve heard so much about your department that I know everyone already.
“……!”
—It’s definitely you, isn’t it?
Seriously, Choi Yu Ra, you’re quick on the uptake.
If you’d been this sharp back in school, you’d have aced the college entrance exam.
This is getting dangerous. I can’t let this go on.
“It’s not! It’s Deputy Manager Kang.”
Kang Na Hee, I’m sorry for selling you out like this—I really want to survive.
—Kang Na Hee, the one who’s always acting so annoying?
Oh no, did I really say her name out loud?
Well, Deputy Manager Kang and Yu Ra would never run into each other, so it should be fine, right?
“Yeah, that’s right. But apparently, Deputy Manager Kang has no choice but to live at that man’s place because of some unavoidable circumstances. Even if they’re living under the same roof, nothing serious will happen, right?”
She’d been uneasy all along, but now that she’d just blurted it out like this, she felt relieved.
At least I had someone to ask.
But then—
Yu Ra shot back in a startled voice.
—What? A man and a woman living together?
“Yeah.”
—Are both of them physically and mentally healthy?
“Yeah.”
—Is the guy handsome?
“Hmm… he’s extremely good-looking, actually.”
—And the woman?
“She’s kind of pretty, I guess?”
Well, that should be fine.
Jae In blinked her big eyes, watching her own reflection in the vanity mirror.
Just then, Yu Ra briskly reached her conclusion.
—Oh my god! Something’s definitely going to happen—bound to!
“Something happen? What do you mean?”
At Jae In’s question, Yu Ra lowered her voice dramatically to explain.
—What else? Romance! A healthy man and woman living together, both good-looking too—it’s basically guaranteed something’s going to happen. If nothing happens, that’d be weird!
Boom.
Jae In’s head went numb, as if she’d just taken a hard hit.
“I-Is that how it is?”
—Don’t you watch dramas at all? That’s exactly how things blow up!
“But what if they really, really hate each other?”
—You must not know since you’re single, but men and women are weird—feelings grow the more you see each other. Haven’t you heard of people who started dating just because they kept running into each other at the bus stop on their way to work?
But Cha Do Hyuk of all people?
Nah, impossible.
Jae In shivered all over as she recalled Do Hyuk’s intense glare inside the elevator, as if he wanted to devour her.
—If they already dislike each other, that’s even more dramatic. All their bickering will ignite like dry firewood and burn fiercely. Be sure to tell Kang Na Hee to always lock her bedroom door when sleeping.
“Why lock the door?”
—You’re seriously asking that? What if he sneaks in at night?!
“……!”
Yu Ra’s giggling echoed like a ghost’s laugh from a horror movie.
—Oh gosh, it’s already past 11! I’ve got a blind date tomorrow—I’d better slap on a face mask quick. Jae In, I’ll see you next Saturday at 1 p.m. at Gwanghwamun Station.
“……Yeah.”
A spooky *tuu—tuu—* sound crept out from the phone.
Trending
Even after the call ended, Jae In remained frozen like stone, unable to blink.
Always lock the bedroom door?
Sneak in at night?
Instantly, goosebumps erupted from her head to her toes.
“Aaaaaaahhhhh!”
Jae In screamed at the top of her lungs, clutching her head as if to tear it apart.
“Living alone together with Cha Do Hyuk.”
There was something she’d overlooked in that simple sentence.
Namely, the word “live” included “sleep.”
She’d only thought it would be uncomfortable—why hadn’t she considered it might be dangerous?
Jae In felt ashamed of her own ignorance.
What if Yu Ra’s words were actually true?
Brrr.
Every hair on her body stood on end.
“I’m crazy! I’m insane!”
She’d wanted confirmation from a third party to ease her mind, even just a little.
Now she was utterly devastated.
As she writhed in distress for a while,
something suddenly clicked in Jae In’s mind.
“That’s right! I’ve got insurance!”
She remembered that precious clause—the team leader had promised not to see her as a woman.
Do Hyuk wasn’t so foolish as to ruin an important project tied to succession over personal feelings.
Good job, Seo Jae In!
That’s the best thing you’ve done in your 27 years.
Only then did Jae In finally let out a sigh of relief.
Alright, calm down now and sort this out properly.
She began writing down her current situation, point by point, on paper.
First, she’d walked in voluntarily and stamped the contract herself—it’s irreversible now.
Second, Yu Ra’s theory is based purely on unverified generalizations.
Third, I find the team leader annoying and unpleasant—I’ve never seen him as a man, and the probability of ever doing so is zero.
Fourth, above all, there’s no way the team leader could be interested in me. Plus, we’ve both agreed to that clause about not viewing each other as the opposite sex—making it even less likely.
Ah!
Suddenly, she remembered something.
Two months ago, a top-tier actress—famous nationwide as Korea’s most beautiful woman—visited the company for an advertising contract.
While the entire office buzzed with excitement, the team leader, who was handling the contract and spent a long time with her, showed absolutely no reaction.
“Geez, my eyes nearly went blind! Team Leader, wasn’t she amazing? Wasn’t she stunning?”
To Section Chief Park’s enthusiastic remark, the team leader replied indifferently,
“Not really.”
Everyone’s jaws had dropped at Do Hyuk’s cool response.
Fifth, the team leader’s standards are sky-high—so there’s no way I’d ever catch his eye.
Thank goodness!
“Yeah, that’s right. A guy whose eyes are practically in the ceiling wouldn’t possibly have ulterior motives toward me. Plus, he’s super rich—our worlds are completely different. Me? Seriously, I was worrying over nothing.”
Jae In muttered loudly to herself, patting her chest in reassurance.
Yet, as the wave of relief passed, a strange sense of defeat crept in.
What’s wrong with me?
“Tch! So what if he’s handsome? So what if he’s rich? His personality’s awful! Even if you gave me a guy like that, I wouldn’t want him!”
No one was offering her anything—she was just beating a drum no one else cared about.
Still, just in case there’s a 0.000001% chance Yu Ra’s prediction comes true, she’d better prepare ahead of time.
Jae In racked her brain hard.
And the best solution she came up with was:
ads
“While we’re living together, I’ll ruin any chance of a weird atmosphere forming.”
Yes, I’ll absolutely make sure he never sees me as a woman—I’ll completely wreck my image.
I’ll only wear those baggy sweatpants with holes at the knees,
skip washing my hair on non-workdays,
definitely skip washing my face,
and even skip brushing my teeth.
Oh, and I’ll fart loudly too…
Wait a second.
Isn’t that exactly how I already act when lounging around at home?
Jae In felt both relieved and bitter.
What’s this feeling of self-disgust?
No way.
Who even scrubs themselves spotless and shines on weekends at home?
“I’ll just stay true to myself and live like a natural human being! It’s super easy—nothing to worry about. After all, it’s just Cha Do Hyuk!”
Jae In shouted firmly, as if making a promise.
She desperately wanted to suppress the creeping fear rising inside her.
Because—
her roommate was none other than Cha Do Hyuk.
“What? Humanity’s greatest atrocity?”
Do Hyuk chuckled softly as he undid his shirt buttons one by one.
He pictured Jae In sitting at the table, casually weaving her lies with such natural ease.
Seo Jae In really was amusing.
Time always flew by whenever he was with her.
But the bitter truth was—it only felt that way for him.
Back in the elevator, she’d desperately tried to escape him.
Yet when she saw Na Min Woo, her face lit up instantly.
‘We’re clearly not anything yet… but has she reached the “liking” stage?’
Frowning, Do Hyuk yanked off his shirt in one swift motion.
Under the soft lighting, his toned, lean muscles formed a perfectly sculpted, sensual upper body.
‘What on earth does she even see in Na Min Woo?’
He knew well that Min Woo—charismatic and gentle—was popular among the company’s female staff.
But still—
“I’m way more handsome, taller, richer, and better at my job—so why him and not me?”
Do Hyuk shamelessly voiced those embarrassingly boastful words.
(Though objectively, they were true.)
Just thinking about spending the next two months in the same space as Jae In made his breath come out hot.
He reached into the fridge for a beer to cool his burning frustration—but sighed deeply and put it back.
Starting today, he’s going dry.
He wasn’t sure he could hold the line.
“Are you in?”
Knock knock.
“Seo Jae In, are you there?”
Jae In forced her heavy eyelids open at the voice calling for her from outside the door.
“Who… is it?”
The person outside answered politely.
“I’m terribly sorry to wake you. I’m the secretary to Young Master Cha Do Hyuk. I’ve come on his behalf to escort you.”
Secretary? Young Master?
“I’ll wait outside—please take your time coming out.”
“Oh, right! It was 10 a.m. today!”
She jolted awake and checked the clock.
ads
It was already past 10:10.
Last night, her mind had been too restless for sleep.
She’d finally dozed off around dawn after setting an alarm—and overslept.
“I’m so sorry! I’ll get ready quickly!”
Jae In dashed into the bathroom—and ultimately didn’t step outside until nearly 11.
“I’m sorry for making you wait.”
“Not at all.”
As Jae In gave a slight bow, the other man bowed even deeper.
He was a man in his mid-thirties—tall, solidly built, radiating calm and intellectual charm.
‘Do they hire secretaries based on looks too?’
Surprised by this unexpectedly handsome man, Jae In subtly checked her eyes for sleep crust.
With a warm smile, he handed her a business card with both hands and introduced himself.
“I’m Kim Sung Joon. Please feel free to call me Director Kim.”
“Ah, yes… I’m Seo Jae In.”
“Young Master Cha specifically instructed me to treat you with special care.”
Ha! As if!
Technically, she knew he’d been ordered to escort a spy—there was no way he’d phrased it so kindly.
‘He probably meant “watch her closely and drag her back.”’
As if reading her thoughts, Sung Joon added with the same gentle smile,
“Young Master seemed disappointed he couldn’t come himself.”
“The team leader? Oh, come on—that’s a joke.”
“I never joke—whether I’m working or not. Never.”
His smiling face remained utterly composed. Even while smiling, he oddly resembled Do Hyuk.
“Ah, I’m sorry.”
“Not at all.”
When Jae In bowed again, Sung Joon, predictably, bowed even deeper.
Ugh, this is so awkward.
Clearly, not just anyone can be a secretary.
Jae In hoped she wouldn’t have to greet Sung Joon too often.
Do Hyuk’s home was on the top floor of a mixed-use building near the office.
As she stepped past the entryway and opened the inner door, a spacious living room and kitchen flooded with sunlight from floor-to-ceiling windows unfolded before her.
Whoa. Overwhelmed by the sheer scale, Jae In gasped aloud.
‘So the team leader really is Cha Dae San’s heir.’
Only now did his status truly sink in.
Sung Joon carried her luggage down the hallway to the left of the kitchen and placed it in the room at the end.
“This is where you’ll be staying, Seo Jae In.”
“This is my room?”
“Yes, that’s correct.”
Jae In’s eyes widened in astonishment.
Setting aside the fact it was several times larger than a typical attic room, the bed alone looked big enough for three people. Pale violet bedding, elegant vintage furniture in soft, refined colors, lavish lace curtains…
It looked unmistakably like a woman’s room.
“I thought the team leader lived here alone? Who stayed here before?”
Ex-husband Wants Reconciliation
One-line summary: Chasing the wife to the crematorium (making an effort to attract someone who has become indifferent), the female lead doesn’t look back, the second male lead takes the position.

Intro:
To repay the kindness of the older generation, Su Mu crossed into a female-dominated world and became a live-in daughter-in-law of the Yan family, single-handedly saving the Yan family from fire and water.
But her husband, Yan Jiyue, the eldest son of the Yan family, treated her with sarcasm and never showed her a good face.
It wasn’t until after Su Mu’s death that this pampered and arrogant young master shed a few fake tears and pretended to want to die for love.
This life’s kindness was enough. If there was a next life, she would definitely kick Yan Jiyue away.
Who knew that the heavens would be so kind as to allow her to be reborn, returning to the time when she had just married into the Yan family.
Su Mu glanced at the Yan eldest son, who still spoke coldly to her, and threw a divorce letter in front of him.
“Let’s divorce!”
***
Yan Jiyue never imagined that he would be reborn. He happily went to find Su Mu, wanting to make up for the mistakes he had made in his ignorant youth.
Wasn’t the reason the heavens allowed him to be reborn to let him reconcile with Su Mu?
But when he pushed open the door to Su Mu’s room, the person lying on the bed was another man.
Su Mu’s personal attendant, Xie Yi.
Yan Jiyue hated him so much that his teeth itched. In front of Su Mu, Xie Yi was a gentle and considerate whisperer of sweet nothings, but in reality, he was vicious-hearted and deliberately sabotaged their husband and wife relationship.
In the previous life, it was he who secretly hid in Su Mu’s coffin and committed suicide, stealing a step ahead of him to be buried with Su Mu.
Yan Jiyue’s eyes were filled with hatred as he cursed, “What kind of thing are you? Your background is lowly, what right do you have to occupy Su Mu?”
Xie Yi looked at the sleeping Su Mu and no longer pretended to be a whisperer of sweet nothings.
He proudly stuck out his belly, “I have the right because my belly is capable of giving the Wife-master a daughter.”
***
Yan Jiyue was consumed with jealousy. He spread rumors that Xie Yi had once been branded with the mark of a “harlot” on his chest.
But on the night Xie Yi cut off the flesh bearing that mark, Su Mu suddenly realized something was amiss.
“How did you know the exact moment I was poisoned? And why did you show up a month early?”
Xie Yi remained silent, blood from his wound soaking through his robes. His sapphire eyes brimmed with anguish – or was it just a flawless act?
Between a once-arrogant husband now seeking redemption, and a gentle soul willing to die for her – who truly held the darkest secrets? And could it be that Su Mu and Yan Jiyue weren’t the only ones given a second chance at life…?
[Reading Guide]
1. True divorce, chasing the wife to the crematorium, the female lead doesn’t look back, the male lead is Xie Yi.
2. The ex-husband did not cheat, he just realized too late and didn’t realize that he liked the female lead.
_____
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