I was Thrown into an Unfamiliar Manga

Hearing Tojo’s shouting right in front of them, the delinquents finally seemed to realize who she was.
“Wait, isn’t this Tojo-sunbae? We didn’t recognize you with all that heavy makeup!”
One of them snickered and then pointed at her outfit.

“You always dress like some tomboy, so what got into you today to get all dolled up like that? Ah, don’t tell me, you’re going on a date with this pretty-boy bastard?”
“You two don’t suit each other at all. You go around beating people with a shinai, and now this?”
“If your chest is small, just stay home quietly. What the hell is that look supposed to be?”

Even though it wasn’t my business, just listening to it made my blood boil.
That’s when Sakamoto, standing beside me, stepped forward.
“Shut your mouth! Tojo’s not someone you guys can talk to like that!”

“Ohhh? Are you trying to play the hero again, pretty-boy? Well, sucks to be you, because we’re not the only ones here today.”
“Hyung-nim! Help us out!”
As the two punks stepped aside, the one who slowly walked out from behind them was a man with slicked-back hair dyed yellow.

“So it’s you? You dared lay hands on my brothers?”
A tall man who looked to be in his mid-20s chewed on bubblegum as he looked down at the protagonist with a thuggish posture.
Faced with the man’s threatening stance, Sakamoto frowned and took a step back.

Seeing this, the punks got excited and began volunteering information no one had asked for.
“Hyung-nim is a former rising star in boxing! If he hadn’t gotten drunk and beat someone up at a drinking party, he’d still be active in the pros!”
“No matter how talented you are, you’re still just a high schooler! There’s no way you can beat our hyung-nim!”

Maybe thinking he couldn’t let this continue, Sakamoto turned and shouted to Tojo behind him.
“Tojo! Leave this to me and get out of here! They’re only after me anyway!”
“I can’t do that! How can I leave you behind in a situation like this!”
The slicked-back man who had been called ‘hyung-nim’ furrowed his brows like he’d heard the dumbest thing in the world.

“You gotta be kidding me.”
“Ugh!”
“You think if you ask to leave, I’ll just be like, ‘Oh, sure, please go ahead~’ and let you go?”

He suddenly reached out and grabbed Tojo’s wrist from behind Sakamoto.
“Hey pretty, forget this pretty-boy loser and have some fun with me tonight.”
“Kyaa!”

“Tojo!”
Sakamoto hurried to pull them apart, but the man didn’t hesitate to use violence.
“Get lost!”

“Guhhk!”
“Sakamoto!”
Tojo screamed as she was held by both wrists.

Sakamoto, punched squarely in the gut, vomited up his lunch right then and there.
Watching this unfold, I could no longer suppress the rage bubbling inside me.
“…Rika, wait here.”

“Huh? Ryu-chan! Where are you going!”
I set down the bag I had slung over my back and began walking slowly toward the slicked-back man, who was grinning vilely as he gripped Tojo’s wrist, surrounded by the laughing delinquents.
At this point, interfering with the original plot didn’t matter anymore.

To be honest, just seeing people like that made my insides twist.
Outlaws who believed in nothing but their own brute strength, completely unafraid of the law.
What the hell is so fun about hitting people in broad daylight?

If they enjoy instilling fear through violence that much—then fine, I’ll become their fear myself.
***
When Tojo Karen was grabbed by the man with the slicked-back hair, the executives of the Toseikai who had been secretly tailing her all sprang up from their hiding spots.

“That bastard—how dare he!”
“Whose wrist does he think he’s touching?”
“Boss! Should we bring the tools?!”

“Wait.”
Everyone froze at the calm voice of the one person who, more than anyone else present, should’ve been fuming with rage.
“There’s no need for us to get involved in some kids’ fight. Besides, look at that one.”

Where Toseikai’s sixth boss, Tojo Naoto, pointed, a massive man was walking forward, radiating an overwhelming bloodlust from his entire body.
From the very first glance, Kim Yu-seong had given off an unusual vibe.
Tojo Naoto looked at him, then glanced down at his own hands, which were trembling.

This feeling—it was very familiar.
It was the same fear he’d felt long ago when he ran into the boss of the Red Mafia during his wilder days.
In short, the fear of someone overwhelmingly strong.

Back then, he’d been lucky enough to escape thanks to his right-hand man, Takeyama, but now? He didn’t think he could win even if they met again.
And this Kim Yu-seong kid, who wasn’t even twenty yet, was giving off the same aura as the legendary “God of Destruction” from the Russian underworld, Ivan.
Even in his unrefined state, he gave off that much pressure. So what if he actually trained under a real master?

Gulp—
Just imagining it, the odds of a monster emerging were high.
‘I want him.’

If possible, he wanted to scout him into the organization.
But he couldn’t exactly go recruiting yakuza from among his daughter’s friends.
From what he could tell, the kid was also an exceptional student. No need for him to step into the dirty underworld.

It was truly a shame to let him go—but Naoto knew he had no choice.
‘Still, I have to watch.’
If that kid hadn’t stepped in, he would’ve had Takeyama deal with those bastards and toss them into the sea with concrete blocks.

But the anticipation of seeing someone with the aura of a peak God of Destruction made him unconsciously stop his subordinates from intervening.
‘Come on, show me. Show me your true strength.’
Naoto smiled with ecstasy as he watched Kim Yu-seong walk forward, slowly taking off his hoodie.

***
“Hold it.”
Hearing the deep voice out of nowhere, the man the high school delinquents had called “hyung-nim,” Hayashi Gen, turned around with a scowl.

“And who the hell are you?”
He tried to act unfazed, but inside, he was rattled.
‘What the hell… what kind of training did this [N O V E L I G H T] guy do, to get a body like that?’

It was like staring at a stone statue.
Well-developed forearms, broad shoulders, thick traps and sternocleidomastoids, and huge pecs.
Even as a former pro, Hayashi could tell—this was no ordinary build.

By rough estimation, the guy was a heavyweight.
Compared to himself—a former light-heavyweight boxer—this guy had at least 10 kilograms on him.
The punching power coming from that kind of frame would be terrifying.

‘Don’t get scared. He’s just a civilian. At best, he probably knows how to throw a punch.’
In a normal fight, Hayashi’s intimidating vibe and muscular frame usually made people back down before it began. But that wouldn’t work now.
He’d fought plenty of bigger guys in back-alley brawls.

While Hayashi calculated the best way to drop him, the massive man suddenly turned to the red-haired girl watching in shock.
“Tojo. Take Sakamoto and get out of here. Leave this to me.”
“But—”

“I won’t lose to guys like this.”
From the way he spoke, it was clear—he didn’t see Hayashi as a threat at all.
Fuming, Hayashi prepared to strike the back of his exposed head.

Just then, the punks in the back shouted.
“Hyung-nim! That’s Kim Yu-seong! The guy from Ichijo Academy who took out a biker gang 50:1!”
“Hah? You idiots! No one wins a 50:1 fight. And a high schooler? With that body?”

Hayashi cursed himself for even taking the guy seriously.
“Sure, for a high schooler, he’s pretty built. But you’re not seriously thinking a bit of size difference is enough to beat me, right?”
He suddenly felt petty—annoyed that he’d hesitated for even a second against a kid who probably ate a hundred times less than him.

So he launched into his footwork and began firing off jabs at invisible speed.
“There it is! Hyung-nim’s specialty! Flash Jab!”
“As expected of Hayashi-hyung! We can only see the afterimages!”

Eight jabs per second—lightning fast.
He prided himself on the speed and power of his jabs as much as his straight punches.
Most opponents couldn’t handle it—just the flash jabs alone would give them a concussion.

But this guy—despite clearly taking direct hits—didn’t go down.
No—he didn’t even take a single step back.
Like a giant tree rooted in the earth, he stood there silently taking every punch Hayashi threw.

It was clearly a one-sided beatdown. But the fact that his opponent stood there as if nothing had happened began to eat away at Hayashi’s nerves.
“Damn it! Then how about this!”
Giving up on winning with just the flash jabs, he finally threw his trump card: his right-hand straight.

A textbook punch—hips twisting, torso rotating, with tremendous force driving it straight toward Kim Yu-seong’s face.
And for the first time, Yu-seong moved.
BOOM!!

A sharp sound split the air as the punch collided with something solid.
But it hit—his forehead. One of the thickest bones in the human body.
With blood trickling down his face, the monster in front of him spoke with cold indifference.

“From here on out, it’s self-defense.”
At that moment, Hayashi felt chills all over his body.
‘This bastard… he took those hits on purpose?!’

But before he could even process that realization—
A massive fist came crashing into his smug face, pulverizing it.