[ I changed my writing style a bit because I feel in this way I can express things more better. And a long chapter for the waiting.]

Pervious Chapter ~

Two people heard this conversation from behind. Both are in different spots. One was hiding in the nearest corridor. And another was on stairs who was coming down from stairs but eavesdrop on it by chance. At the time both of them send specific messages to different people.

Present Chapter ~

The classroom was buzzing with chatter. Some students were waiting for the teacher to arrive, while others were already deep in conversation.

Soon, the teacher entered the room — and right behind her came A/N. She quietly took her seat after asking for permission. The class began without further delay.

Y/N leaned over and wrote a note on her notepad, sliding it toward A/N.

“Did you follow her?”

“Not all the way, but I found out where she’s from. She’s in Class 11-B.”

“Alright. We’ll find it out during lunch.”

When the lunch break bell rang, Y/N and A/N made their way toward their private room hidden in the back wing of the school. But something felt off. The twins could feel eyes on their backs — and when they glanced behind, they spotted Kim’s maknaes walking a little too close

Y/N suddenly stopped in the middle of the hallway, making A/N pause too. Rosé, caught off guard, bumped into them.

A/N turned, eyes sharp.
“Why are you following us?”

Taehyung raised an eyebrow.
“We’re not.”

“Then what do you call walking behind us all the way from the second floor?” Y/N asked, not letting it go.

Jungkook sighed.
“Relax. Our brother called us to his room. We’re going to our side of the school — not trailing after you.”

Rosé added with a light smirk,
“But if you want us to follow you, just say so.”

A/N rolled her eyes.
“No thanks. We don’t like shadows unless they’re useful.”

The hallway grew tense for a second — but before anything more could be said, a message echoed from the school’s loudspeaker.

“All Class 11-B students, please report to the east hallway. Urgent.”

The moment the announcement echoed through the hall, A/N and Y/N didn't waste time. They shot one last look at the Kim maknaes before walking off — their pace sharp, focused.

Taehyung muttered under his breath, “So dramatic.”

Jungkook watched them disappear around the corner, jaw tight. He could sense it — something was coming. And it wasn’t going to be simple.

—

In the east hallway, a group of students from 11-B were already gathered. Mina stood among them, pretending to scroll through her phone, acting like she hadn’t just flushed something down the girls’ washroom sink minutes ago.

Y/N’s eyes scanned the group as they approached. Their eyes locked on Mina. She was too calm. Too distant. And her eyes darted toward the girls’ restroom just a second too long.

Y/N’s gaze sharpened.

“We check the washroom. Now.”

But just as they moved forward, a teacher appeared behind them.
“Lee twins. Stay here. We have a few questions for you too.”

Both sisters turned slowly.

Y/N forced a smile.
“Of course, sir. Just give us a moment.”

Behind them, Mina was already starting to walk away.

—

Meanwhile, in another hallway…

Lisa stood near the vending machine, nervously typing on her phone. Jungkook leaned against the wall beside her.

“They’re onto something,” she whispered.

“You mean the twins?”

Lisa nodded.
“Mina. I saw her drop something in the washroom earlier. Didn’t get close enough to see what.But it was some packets.. like drugs.”

Jungkook shot his gaze at her with disbelief “What ?”

She nodded her head with a sigh and replied “ I informed Hobi oppa about this, I think he will soon be here with others. As now Y/n and A/n are getting involved with this, I don't know what they are upto now.”

Jungkook narrowed his eyes.
“Tell me next time. Don’t go near that alone.”

Lisa looked up at him.
“You still don’t trust them?”

He didn’t reply right away.

“It’s not about trust. It’s about figuring out whose side they’re really on.”

Lisa then suddenly starts walking towards the east wing. “Jungkook! Let's go there, I have a feeling something will definitely happen today. ”

Jungkook quickly followed her after massaging in group chat to reach there as soon as possible.
----

The east wing of the school was unusually quiet — the kind of silence that carried weight.

Y/N and A/N walked side by side, eyes sharp, footsteps precise. Though the day had only begun, they already had leads to follow — and they weren’t going to let them go cold.

They reached the girls' washroom without a word.

A/N pulled out a small black device from her backpack. It looked like a toy — but it wasn’t. With one tap, it scanned the floor, walls, and corners.

Red light blinked.

Traces of illegal substance: Confirmed.

Y/N’s jaw clenched. “So, it’s real.”

Before they could inspect further, a sharp voice interrupted.

"You two. That’s enough," said a teacher, stepping in front of them. "This isn’t your business. Go back to class."

A/N shot her a dry look. “It is our business.”

Before the confrontation could escalate, a deeper, colder voice joined in.

“Let them continue.”

Everyone turned.

Lee Chen stood at the doorway, composed and unreadable. The principal walked in beside him.

"Mr. Lee?" the teacher said, confused.

Chen handed a folder to the principal, then spoke directly, "The Lee sisters own 60% of this school. They have every right to inspect the premises."

Principal Nam nodded in agreement. “They have my full permission.”

The teacher stepped aside, stunned.

Without wasting time, the twins moved in. A/N walked to the last stall, the one closest to the back wall. She gently tapped the tiles, then found it — the loose one. Behind it was a crumpled plastic packet with fine powder dusted inside.

Y/N took it, her expression unreadable.

“Found it,” A/N said softly.

Just then — a click. Footsteps.

It was Mina, from 11-B, standing just inside the doorway, her face pale.

“You... why are you doing this?” she asked in a trembling voice.

Y/N turned slowly. “You tell us. Why are you doing this?”

“I didn’t want to!” Mina blurted. “They forced me. They said if I didn’t hide it here, they’d—”

“Who?” A/N stepped forward.

“I—I don’t know their names. I never saw their faces.”

Mina’s eyes darted nervously toward the window.

And in that split second—

CRACK!

Glass shattered.

A/N and Y/N dropped instantly. Mina screamed and collapsed, a line of blood trailing down her shoulder.

A/N shielded her head as Y/N scanned the direction.

“West window—sniper!” Y/N shouted.

From the abandoned music building, a glint of a gun disappeared.

A/N checked Mina’s pulse. “Still alive. But she needs help now.”

Y/N tapped her hidden comm device. “Code Black. Medical team and lockdown—now.”

Within minutes, school security swarmed the hall. Students were ushered back to classrooms. Then — the Kim maknaes arrived.

Lisa, Jungkook, Rosé, Jimin, and Taehyung stormed down the corridor.

“What happened?” Jungkook asked, eyes already scanning for threats.

“Someone shot her,” A/N replied, pressing a cloth to Mina’s wound. “Just before she could confess.”

Jimin knelt beside her. “You got a description?”

“No time. Shooter’s gone,” Y/N said. “But this wasn’t random. Someone wants her silent.”

Rosé looked at the window, still stunned. “In school?”

Taehyung glanced at Chen. “And you’re letting them investigate why?”

Chen didn’t answer at first. He looked at his sisters.

“They’re not just students,” he finally said. “They’re the ones who own most of this school. And they’re not just here to study.”

Lisa stepped forward. “We know. We’ve known for a while. We just didn’t say anything.”

Jungkook nodded. “Respect.”

Taehyung frowned but stayed silent. Jimin’s gaze lingered on A/N, confused — maybe impressed.

A/N stood, brushing off glass from her sleeve. “This school has a drug ring inside. Mina was just the middle link.”

“And the chain?” Y/N asked, voice low.

“Still hidden,” A/N replied. “But not for long.”

Y/N turned to the principal. “This isn’t over.”

Chen stepped forward, voice colder than ever. “It just began.”

To be continued ~

.

.

.

.

.

.

.

.

.

.

______________

Here is the bonus part as my birthday special. ~

______

The hallway buzzed with urgency as medics arrived, lifting Mina onto the stretcher. Blood still trickled from her shoulder, her face pale but breathing steady.

Y/N stepped back, eyes narrowed. "Get her to the hospital. Private wing. Discreetly."

Chen nodded, already coordinating with the principal and trusted guards.

Suddenly, thundering footsteps echoed down the corridor.

Bangpink' elder siblings had arrived.

Seokjin, Namjoon, Jisoo, Yoongi, Hoseok, Jennie all of them. The full force of BLACKTAN. They started to observe the situation.

They came here after hearing from other students there was a commotion going on. So they quickly follow the students to the washroom corridor.

Y/N adjusted the pressure on Mina’s wound, her calm exterior betraying the storm within. A/N knelt beside her, opening a med kit from her backpack — something no ordinary student should be carrying.

Jungkook was the first to move, pulling off his jacket and placing it under Mina’s head. “We have to get her to the hospital. She’s fading.”

“I called the ambulance,” A/N said shortly. “It’ll be here in three.”

Jimin looked from the growing pool of blood to Y/N. “You’re going to lose her if you wait.”

“We don’t need help,” Y/N said flatly, not even meeting his eyes.

“Yes, you do,” Lisa replied, stepping forward. “This isn’t about ego. It’s about saving her life.”

Taehyung glanced at A/N. “Whatever you are, right now you’re students in a crisis. Let us help.”

A/N looked at her sister, unsure. Y/N’s jaw tightened, the conflict clear in her eyes — trust them, or risk Mina’s life.

“Fine,” she said at last. “But no questions.”

“Deal,” Namjoon nodded, already signaling to Jungkook. “We’ll carry her.”

With practiced coordination, Jungkook and Hoseok lifted Mina gently while Lisa supported the IV. Jisoo and Jennie cleared the hallways, barking orders like trained tacticians. The Lee twins, though unwilling, allowed it — walking just behind, silent shadows.

.
To be continued ~

[So tell me how it was? Did you like it if yes then vote and comment when do you want me to upload the next chapter? ]