I was Thrown into an Unfamiliar Manga

The Dark Student Council!

A prestigious student organization that rules over Ichijo Academy from the shadows.
Its leader is none other than Saionji Kumiko, a direct descendant of the Saionji clan—one of Japan’s most elite noble families. Even the school chairman trembles at a single word from her, allowing her to wield near-absolute power within the academy.
Currently, the Dark Student Council consists of four members, and the roster is as follows:

President
Saionji Kumiko.
Vice President
Akagi Shinjiro.
Treasurer
Akagi Minami.

Secretary
Kim Yu-seong.
Among them, the secretary—Kim Yu-seong—is widely rumored throughout the academy as the Student Council’s secret weapon.
And for good reason: ever since the second semester of his first year, Kim Yu-seong has earned the title of “Strongest Man in the Academy.”

No matter how popular a delinquent was in class, they became meek as lambs in his presence. Those who talked behind his back about him being Korean soon found themselves mysteriously transferring to other schools.
At the beginning of his second year, the “Club Crushing Incident” in which Kim Yu-seong visited every athletic club and challenged them one by one, instantly crushed the rumor that . Not only that, but the repair cost for the broken club equipment he left in his wake totaled nearly 200,000 yen—paid by the Student Council—and became the stuff of legend.
A man of both brains and brawn, the unparalleled sovereign at the peak of the school caste!

The king of beasts who conquered the jungle that is Ichijo Academy with his fists alone!
That was none other than Kim Yu-seong.
But even someone like Kim Yu-seong had one scandal he could not avoid—

Namely, the “Octopus Legs” suspicion.
***
"Then, let’s begin the First Meeting of the Kim Yu-seong Countermeasures Committee."

One quiet afternoon in June.
Since today was a day without club activities, the three members gathered in the Student Council room without Kim Yu-seong present, holding a secret meeting.
Vice President of the Student Council and chair of today’s Kim Yu-seong Countermeasures Committee, Akagi Shinjiro, stood before a rolling whiteboard. On it, he’d pinned various photos and data he’d personally collected using magnets and scribbled notes densely in black marker. With a serious expression, he began explaining:

"Currently, there are already seven girls around or involved with Kim Yu-seong. It’s time for you, milady, to start feeling a sense of crisis."
Saionji Kumiko, fingers interlaced and chin resting atop them, responded:
"But Kim Yu-seong hasn’t shown any clear interest in anyone yet. At this point, isn’t this just us getting ahead of ourselves?"

BANG!!
Akagi Shinjiro slammed the desk and spoke passionately.
"That mindset is unacceptable, milady! With that kind of naive attitude, you’ll never survive this ruthless game of chicken!"

"Sh–Shinji?"
Contrary to his usual loyal demeanor, Shinjiro was acting different today.
But it all stemmed from his earnest concern for his lady.

Having played all sorts of games since childhood, he knew.
If she kept holding this vague position, she would be the first to be eliminated in this brutal race.
"You may think you still have a year left, milady, but you must realize it’s only a year! If the first semester ends like this with no progress between you and Kim Yu-seong, then you’ll end up in the Hora mo zenzen position!"

"H–Hora mo zenzen?"
"It means you’ll be a losing heroine in the race!"
DUUUN!

Shocked by her retainer’s blunt truth, Saionji Kumiko’s expression twisted belatedly.
Watching quietly until now, Akagi Minami added her own comment.
"I also agree with my brother. You and Kim Yu-seong are currently in a very ambiguous relationship. Too close to be mere upperclassman and underclassman, but not quite lovers either."

"I–If I just keep progressing slowly…"
"You first met Kim Yu-seong last September, milady. You haven’t forgotten that, right?"
"……."

At Minami’s pointed reminder, Saionji Kumiko fell silent.
It was the day she had secretly escaped from her mansion to experience commoner life and ran into Kim Yu-seong by coincidence.
Back then, she had been so shy she couldn’t even meet his eyes, but now they could talk comfortably.

If there was anyone who had undergone the most change in the past year thanks to Kim Yu-seong, it would be Saionji Kumiko herself.
"It’s already been over half a year since he joined the Student Council. Last year, you forced him to give up other club activities so you could spend more time together, but this year that’s no longer an option. It’s time to start getting anxious, milady."
Unlike before, now he had more rivals surrounding him.

"……."
Though different from her brother Shinjiro, Minami’s advice also came from a place of loyalty.
And because Saionji Kumiko understood that, she was able to make a decision.

"…Alright. Then let’s hear it. Shinjiro."
"Thank you for trusting me, milady."
Akagi Shinjiro gave a deep bow, then began his full briefing on the whiteboard.

"The surge of girls around Kim Yu-seong began with this blonde transfer student."
He pointed his stick at the photo of a blonde, mixed-race girl pinned at the top of the board.
"Name: Kishimoto Rika. The only daughter of famous mangaka Kishimoto Musashi. A half-Japanese girl with a British mother. As you can see, she has striking looks and is used to grooming herself. She previously worked as a reader model and has outstanding talent in fashion and accessories. I believe you’ve met her before, milady."

Seeing the familiar face, Saionji Kumiko nodded.
"Yes. Our personalities didn’t match at all."
"With her carefree attitude, her ease of approaching both sexes, her killer figure and stunning face—even the stone-faced Kim ⊛ Nоvеlιght ⊛ (Read the full story) Yu-seong would find her interesting as a woman."

"…Alright. Noted as a person of interest. Who’s next?"
Next, Shinjiro pointed to a red-haired, athletic-looking girl.
"Name: Tojo Karen. The only daughter of Tojo Naoto, the sixth boss of the Toseikai—the oldest yakuza group in the Kanto region. She inherited his bright red hair and outstanding athletic ability. Height is about the same as yours, milady, but her bust is considerably smaller. While some may say flat chests are a status symbol, in the end a woman’s greatest weapon is her chest. You can afford to be less cautious here."

"A small fry. Next."
"Name: Alexandra Ivanovna Romanova. A Russian exchange student who recently came to Japan through your own sister-school exchange program, milady. According to classmates, she goes by Sasha. Her father, Ivan Vladimirovich Romanov, is the head of a global conglomerate called Easter Egg Company—equal in power to the Saionji Zaibatsu. She’s supposedly of true Romanov blood."
"I’ve summoned a tiger…"

"Unfortunately, that’s how it is. Out of everyone mentioned so far, she has the most formidable background. Frankly speaking, she overlaps with your character profile, milady."
"You didn’t have to point it out, okay?!"
"My apologies."

Even as he bowed, Shinjiro pressed on.
"Still, she is without a doubt the most dangerous out of all the women. While others are still testing the waters like you, milady, she supposedly confessed to Kim Yu-seong right after transferring."
"W–What was Kim Yu-seong’s reply?"

"It’s unclear. He might’ve taken it as a Russian joke. He didn’t give a clear answer."
"…That’s a relief."
Minami chimed in slyly.

"Milady, are you relieved right now?"
"Wh–Who said that?!"
Saionji Kumiko flailed, denying it, while Minami gave her trademark sneaky smile and added, “Never mind, then.”

"Next is Mizuki Nanae, the new teacher this year."
"…Why is a teacher on this list?"
"Based on testimony that she blushes whenever she hears Kim Yu-seong’s voice, I thought there was potential and added her."

"His voice is nice. I’ve even thought about recording it to listen to before bed."
"…Milady."
As Shinjiro looked at her with pity, Saionji Kumiko belatedly realized her slip of the tongue and blushed furiously.

"I–I didn’t actually do it, okay?!"
To protect the privacy of his beloved lady, Shinjiro quickly moved on to the next candidate.
"Next, Minato Naoya. A current actress and idol recently grouped with others of similar age for a project."

"Oh, I’ve seen her. She’s in a lot of commercials lately. …But she likes Kim Yu-seong too?"
Shinjiro pushed up his glasses with his middle finger and nodded heavily.
"‘Likes’ might be an understatement—she practically worships him."

He read aloud from the private detective report he had obtained.
"According to this, Minato Naoya hired a PI right after enrolling to receive regular photo updates of Kim Yu-seong. Hacking her PC and smartphone search history suggests she’s a severe muscle fetishist. She’s more in love with his muscles than his face."
"…Now he’s seducing girls with his muscles?"

Saionji Kumiko muttered in disbelief, and Minami nodded beside her.
"The first one who fell for him was me… I can’t believe things got this complicated. At this point, I could believe it’s fate playing tricks on me."
"That’s exactly why I said we can’t stand idle anymore."

Finally feeling that his lady and sister understood him, Shinjiro was moved.
Holding back tears, he pointed to the final name on the whiteboard.
"Last is Ayase Satsuki—the person who’s known Kim Yu-seong the longest."

"Huh? Wasn’t that me?"
"Unfortunately, she’s been in the same class with him since the first semester of first year. That means she’s the only rival who knows Kim Yu-seong’s past."
"No way…"

"But, silver lining—there’s been no sign of her showing romantic interest. She’s just the one he talks to most easily in class, so she’s here as a placeholder. She could drop off the list at any time. There is one odd detail, but it seems unrelated, so I’ll skip the explanation."
After Akagi Shinjiro’s long, long briefing ended, Saionji Kumiko, dazed by the endless flood of new faces, sipped the green tea Minami had prepared to calm herself.
"I’ll give you credit, Shinji, for gathering all this info. But don’t tell me this is all you’ve got?"

Shinjiro’s glasses flashed as he grinned.
"Of course not. This was just the prologue."
With that, Akagi Shinjiro rolled the whiteboard aside and projected a prepared image onto the blank white wall.

============================

Project S.U.V

============================
"Project S.U.V…?"
Saionji Kumiko murmured in a trance, and Akagi Shinjiro solemnly nodded.

"This summer, milady, you must conquer Kim Yu-seong."
Otherwise… there is no hope.