36. Mother-in-Law's Younger Sister Kim Seo-hui Stunned by the Aura of My Massive Erection.
36. Kim Seo-hui, the Sister-in-Law Stunned by My Colossal Erection Aura
"Frankly, when I heard the situation from my sister, I clicked my tongue. I thought, 'Ah, Mi-na, you've inherited your mother's Hongdae Disease.'"
Kim Seo-hui was refreshingly blunt. What she meant was that upon hearing Geum Tae-yang's background, she assumed Seo Mi-na was stubbornly rebelling against something, just like her sister Kim Seo-yeon had. "But seeing you in person, I get it now. You've got the kind of face our Mi-na would like. You're pretty."
'P-pretty?'
This was Geum Tae-yang, a man who prided himself on his rugged masculinity. But to Kim Seo-hui—a 32-year-old exuding the aura of a future successor—he was just a pretty-faced youngster. Tae-yang was stunned by the unprecedented adjective. "Right, Auntie? Tae-yang's handsome, isn't he? Mom's been going crazy over how pretty he is."
"No kidding. She wouldn't stop bragging about her future son-in-law during our call—gave me a headache bad enough to reach for painkillers."
For Seo Mi-na, this was the perfect dynamic. Her mother Kim Seo-yeon's penthouse world was too wholesome and bright—a toxic work environment for an artist who thrived on decadence. "Live happily. Don't end up divorced like my sister."
"That won't happen. I've already erased the word 'divorce' from my dictionary."
Kim Seo-hui didn't bombard him with questions or engage in a silent power struggle like her father Kim Il-do. She was coolly approving of the marriage.
Except her blessing carried a sharp edge. "But as a businesswoman, I deeply trust my sister's judgment. It's just her taste in men that's lacking."
Once the primary purpose of the meeting was settled, the conversation shifted to work.
Kim Seo-hui's posture grew more elegant, and her speech shed all casualness. "I was honestly surprised my sister recommended you to me with such confidence. She never pushes personal connections—only professionals."
When Kim Seo-hui needed someone for a critical role, she sought her sister's recommendations. This time, Kim Seo-yeon had suggested her future son-in-law, Geum Tae-yang. It was unexpected. As someone who'd watched her sister's rise from the sidelines, Seo-hui knew better than anyone how strictly Kim Seo-yeon separated personal and professional matters.
'Ugh... Mother-in-law... Why do you hold this worthless son-in-law in such high regard...?'
Frankly, Tae-yang would've been grateful just to be considered for a tough labor job. His credentials weren't impressive. But Kim Seo-yeon, in her capacity as CEO of Galleria Cheongdam, had recommended him as someone beyond his resume. "What was her reason, Auntie?"
Even Seo Mi-na hadn't expected her mother's aggressive involvement. She'd been prepared to start from Tae-yang's semi-basement. Now, she was curious. "When I asked, she said, 'He's someone I'd trust absolutely.'"
Kim Seo-yeon's assessment of Tae-yang's strengths was concise and powerful.
'Ugh... Am I clouding Mother-in-law's judgment?'
The praise weighed heavily on Tae-yang himself. "That's it? She didn't mention any other strengths?"
"What strengths? You've got no certifications or experience."
'Damn it, Mi-na, just stay quiet...'
Seo Mi-na, however, took offense. No matter how much they bickered, Tae-yang was still her ultimate standard. "You might not realize it, Mi-na, but by my standards, that's the highest praise possible. Because even when she got along with your dad, my sister never said that about him."
"Seriously?!"
To Kim Seo-hui, the decision-maker, this was astonishing. "I'll say it now—back then, my sister called your father a good man, an entertaining man, a capable man, a free spirit. But she never said she trusted him absolutely."
"Wow... Mom's ruthless..."
Kim Seo-yeon had loved Seo Min-jun passionately. Why else would she have had four children with him? But over time, the man she experienced—Seo Min-jun the individual, the husband, the head of household—proved different. Hence, she ran her business entirely separately.
'Damn... I can't even imagine it. She's never shown me that side, even in the short time I've known her.'
Tae-yang was floored. Was this the same warm, doting mother-in-law he knew? The one who showered him with unconditional generosity? "And the role I'm entrusting to you, Tae-yang-ssi, hinges entirely on that trust."
Having satisfied Seo Mi-na's curiosity, Kim Seo-hui turned back to Tae-yang.
'The Ceremonial Security Team... So essentially, the future chairwoman Kim Seo-hui's personal intelligence division.'
The organization Kim Seo-hui then mentioned and explained was the Ceremonial Security Team. Though outwardly branded as a ceremonial unit, the team in fact handled corporate security—a critical function given Terra Nova Bio Medical's stringent technology protection requirements.
As Kim Il-do gradually began considering succession plans, vulnerabilities emerged in the corporate environment. The team existed to minimize those risks and ensure Kim Seo-hui could safely take the reins.
"Initially, we couldn't establish a large-scale operation, so we only had a chief and an assistant. That chief is now Director Jang Do-hui, who oversees the entire team."
Freshly promoted to Division Head, Kim Seo-hui would have faced heavy scrutiny for creating a large internal security division. Instead, she kept the team small but recruited only the best talent—
—and Jang Do-hui, a veteran of a globally renowned PMC, was the perfect fit.
"But this year, the Ceremonial Security Team expanded significantly. The new recruits were recently trained personally by Director Jang Do-hui herself."
Within a year, Kim Seo-hui had gained substantial control over Terra Nova Bio Medical. The team's expansion was proof of that. The process went smoothly because Jang Do-hui had already recruited plenty of her former PMC juniors.
The more I hear, the clearer it is that Jang Do-hui held a high position in the PMC... If someone of her caliber is involved, this isn't just corporate security training—it's practically espionage drills.
As he grew slightly closer to Seo Hye-jin, Geum Tae-yang gained access to more information about Jang Do-hui. The legend of Gangnam had been no exception even within the PMC.
After all, you never use a sword meant for slaughtering cows to kill a chicken. Geum Tae-yang suspected the team's expansion wasn't just about increasing numbers.
"Do you have any questions so far, Tae-yang?"
At that moment, Kim Seo-hui passed the turn and asked Geum Tae-yang if he had any questions.
It didn't seem like a mere formality—there was clear intent behind it.
'I do.'
And as he listened carefully to Kim Seo-hui's explanation, something he wanted to ask formed in Tae-yang's mind.
"This may be presumptuous, but based on what I've heard so far, I'm not sure why it has to be me."
True to his battle-hardened nature,
the same man who had been nodding along with a slightly dazed expression just moments ago
now met Kim Seo-hui's gaze with unwavering eyes and spoke.
"Go on."
Sssuuuuuk...!
As if intrigued by his demeanor,
Kim Seo-hui crossed her legs and urged him to continue.
"Even if the team expands, the work will still revolve around specialized corporate security—areas requiring professional expertise. If you're filling the Protocol Security Chief position, wouldn't Division Head Jang Do-hui's juniors from the PMC be far more qualified?"
Though Kim Seo-hui had emphasized the need for absolute trust,
by all accounts, the trained trust of PMC veterans seemed far more fitting.
"You've pinpointed the exact issue, haven't you? Sharp. My sister didn't mention you being this perceptive. Did she hold back to surprise me?"
Kim Seo-hui murmured softly, but her admiration was genuine.
She had planned to employ Geum Tae-yang one way or another anyway.
She had only probed to see if he had merits beyond what she expected—
"And you've got nerve too. I'm surprised you can look me in the eye so steadily while saying all that."
She hadn't expected much, but he was leagues beyond her expectations.
"Thank you for the compliment."
"See? I told you Tae-yang has plenty of merits, Auntie!"
This was Kim Seo-hui—a graduate of Korea's top university, a 31-year-old successor to a corporate giant.
Flustered by the Queen's praise, Tae-yang ducked his head slightly,
while Seo Mi-na's shoulders lifted with pride seeing her soon-to-be groom recognized by her elite aunt.
"You're right. If the goal is preventing corporate leaks and protecting information, trained professionals are the answer. But this Protocol Security Chief position handles something far more... personal."
The Protocol Security Chief doesn't work in the Protocol Security Office—they operate out of the Secretary's Office.
What did that imply?
"My personal affairs."
They would directly report on Kim Seo-hui's private matters—
matters even the Chief Secretary couldn't access.
"Mi-na, did you happen to tell Tae-yang about my relationship with the Taesung family?"
"Yep. Tae-yang and I have no secrets now."
"Honestly, you're the type to lose her head over a man. Well, that makes this easier."
Kim Seo-hui brought up the Taesung family.
'I've heard bits and pieces... Like how the Division Head is married to the Vice Director of Taeseong General Hospital under the Taesung Medical Foundation.'
The Taesung family, a medical foundation dynasty, had established a business partnership with Terra Nova.
Among them, Choi Jin-tae—Vice Director of Taeseong General Hospital—was the eldest son and successor of Chairman Choi Mu-seok of the Taesung Medical Foundation.
And also Kim Seo-hui's husband.
'In other words... a political marriage.'
Fundamentally, Kim Il-do and Choi Mu-seok were inseparable friends.
With their businesses deeply intertwined, a political marriage between the two families was inevitable.
'Originally, they planned to marry him to Mother-in-law.'
Kim Seo-yeon was four years older than Choi Jin-tae.
Both families assumed the political marriage would proceed without issue—
until Kim Seo-yeon, whom even Choi Mu-seok trusted more than his own son, derailed the plan.
'Things nearly fell apart... until Kim Seo-hui unexpectedly volunteered as a replacement.'
Like her sister, Kim Seo-hui had been sharp since childhood.
But back then, Chairman Kim Il-do judged her temperament ill-suited for business.
Yet at some point, she changed—promising her father not only to succeed him but also to go through with the political marriage.
'She never explained why, but Mother-in-law seems to blame herself, thinking Seo-hui did it to reconcile her with our maternal family.'
Her ten-years-younger sister's decision had shocked Kim Seo-yeon.
The conciliatory gestures from their maternal family afterward made Seo-hui's intentions clear—
She believed her little sister had shouldered her burden.
'Mi-na didn't mention anything about Auntie's married life, though... Hmm. If it's private Taesung-related info, does that mean there's discord?'
Kim Seo-hui often discussed business but never her marriage with her sister.
Oddly, she seemed to confide more in Seo Mi-na.
Yet even Mi-na had kept it from Tae-yang.
'Fuck, she blabs all my private details but clams up about this?'
The moment private affairs entered the conversation, a simmering heat rose deep in Tae-yang's chest.
"Ssslluuurp...!♡ Ssslluuurp...!♡ Holy shit, it's huge... Ssslluuurp...!♡ To think this is going inside my pussy... Haaah...!♡ Ssslluuurp...!♡"
"Pfft! What's with the sudden awe?"
Seo Mi-na, sucking Tae-yang's cock just like her sister had, couldn't contain her admiration.
Her man's dick was too big.
"Auntie totally had this skeptical vibe, like she didn't believe me about your dick size."
"Huh? Auntie?"
"Yeah, ssslluuurp!♡ Our Seo-hui Auntie, ssslluuurp!♡"
"....????"
Seo Mi-na had spilled everything about Tae-yang's cock to Kim Seo-hui.
"So I even gave her the exact measurements. Told her I measured it myself—23cm when hard, heehee! Ssslluuurp! Pop!♡"
"......"
When Kim Seo-hui questioned why Mi-na was already thinking of marriage, Mi-na had wanted to brag about her man.
Boasting about his looks wasn't her style—
so her trump card was Geum Tae-yang fucks like a god.
Especially since his dick was so massive she'd never find a replacement.
"God, Mi-na! Mi-na, please!! Control your crazy side for once!!!"
Thrust! Thrust! Thrust! Thrust! Thrust!
Schlllk! Schlllk! Ssquelsh! Gluck! Ssllurp! Schlllk! Ssquelsh! Schlllk!
"Haaah!♡ Gggkk! Sssso good, fuck! Haaah!♡ T-that rough Tae-yang feels sssso good! Haaah!♡ Haaah!♡"
Geum Tae-yang, who'd just had his manhood certified by someone who might become his superior,
continued thrusting his massive cock vertically into Seo Mi-na's oral cavity as he vented his frustration.
"The deputy director of Taeseong General Hospital—with whom we maintain a close collaborative relationship—that is to say, my husband, unfortunately has significant flaws both as a business leader and as a human being."
In any case, Geum Tae-yang's prediction had been correct.
Kim Seo-hui's husband, Choi Jin-tae, had serious problems.
Still, he was her husband, after all.
Though Kim Seo-hui was blunt by nature, she had refined her words carefully for this coming-out moment.
"The unfortunate issue is that I, as his wife, cannot simply understand and overlook this alone. His actions have a major impact on our business."
Not only in the use of medical devices, but a significant portion of Terra Nova's database—essential for technological development—relied on Taeseong General Hospital and the Taeseong Foundation.
In other words, if the hospital was run like garbage, Terra Nova would take a direct hit.
"Therefore, we must prepare for any unforeseen circumstances, which means handling all sorts of information related to my husband. Even the embarrassing aspects, as his wife."
Ultimately, Kim Seo-hui felt the need to manage not just Terra Nova but also the external Taeseong Foundation.
To achieve this, she had naturally expanded the Ceremonial Security Team.
"That's why I need more than just professional trust. The reason I've kept Chief Manager Jang by my side isn't just because she's a capable expert—it's because she's family."
Jang Do-hui would be taking full charge of managing the Taesung Family from now on.
However, since she would primarily be directing the organization and handling fieldwork, Kim Seo-hui needed a trusted Protocol Security Chief who could work in sync with her.
She figured that Geum Tae-yang, who would soon be bound to her as family, might allow her to expose some of these unsavory matters with a bit more ease.
'Haah... Her Majesty's life isn't so easy either...'
Geum Tae-yang's first impression of Kim Seo-hui had been that of a queen—or perhaps an elegant swan.
Even now, in this very moment, she still appeared to him as a swan.
Except that, beneath the surface, he could almost see the transparent legs tirelessly moving to keep herself from sinking.
"I think I understand a little now."
"That's a relief. I'm glad this much explanation was enough for you."
Smirk...!
At Geum Tae-yang's humble acknowledgment, Kim Seo-hui allowed a faint smile to cross her lips.
It was because she sensed his consideration.
"For now, I think I'll be fine, but we should still hear Chief Manager Jang's opinion. After all, the Protocol Security Chief will also be responsible for overseeing the Ceremonial Security Team's overall operations."
Kim Seo-hui glanced at the clock on the wall.
[Division Head, Jang Do-hui, Chief of Ceremonial Security, has arrived.]
"Perfect timing. Yes, let her in."
Jang Do-hui had been scheduled to attend.
"Haah... It's been a while since I've seen Do-hui unnie too."
Soon, the door to the Division Head's Office opened,
and Seo Mi-na rose from her seat to greet her older sister.
'Am I really about to face a legend?!'
From Geum Tae-yang's perspective, Jang Do-hui was someone he'd genuinely wanted to meet for the past month.
A woman who had conquered the Gangnam Academy District with her fists alone—
he wanted to feel that presence for himself.
"I've just finished the Ceremonial Security Team's training and have arrived, Division Head."
"Good work, Chief Manager Jang Do-hui."
Dressed in the Ceremonial Security Team's exclusive tailored suit, Jang Do-hui entered the office and bowed in greeting.
At a glance, she appeared to be over 180 cm tall.
Her platinum blonde ponytail and striking blue eyes left no doubt about her mixed heritage.
"Unnie, I'm here too. And this is my future husband."
"Right, Mi-na."
At Seo Mi-na's voice, Jang Do-hui lifted her head and turned to look in their direction.
And so, when Geum Tae-yang and Jang Do-hui's eyes met—
'...!!!'
Both of them—
'Huh???'
—simultaneously widened their eyes in shock.
'Why is that person here of all places????'
Because they were already acquainted.
Unlike with Seo Hye-jin earlier, this time, both of them recognized each other.