The storm outside the Kim corporate headquarters was doing nothing to clear the stifling air inside the top-floor office. Min-jun stood by the floor-to-ceiling glass, watching the rain lash against the city skyline, his mind consumed by the upcoming merger.

Then, his phone buzzed on the mahogany desk.

It wasn't his usual ringtone for business clients, nor was it the chime reserved for family. It was a low, hollow vibration. Min-jun stepped over and picked up the device. The screen illuminated the dim room in a harsh, cold blue.

Unknown Number: The truth of that night is out.

Min-jun’s breath hitched. The air in his lungs suddenly felt like lead. For seven years, that night had been a ghost they locked away in the darkest corner of their minds. He didn't think, he didn't breathe—he just grabbed the phone and threw open the door connecting his office to his brother's.

Seo-jun was reviewing financial sheets, a gold fountain pen poised elegantly in his hand. He looked up, a sharp remark about knocking already forming on his lips, but stopped the moment he saw Min-jun’s face. Min-jun looked like he had just seen a ghost.

Without a word, Min-jun crossed the room and slammed the phone face-up onto the desk, right over the corporate papers.

Seo-jun leaned forward, reading the glowing text. The fountain pen slipped from his fingers, leaving a dark, ugly blotch of ink on the pristine white paper. The silence that followed was absolute.

Across town, the same wave of panic was already striking the next target.

In the secluded, dimly lit corner of an upscale restaurant, Ha-yun and Woo-jin were supposed to be celebrating a successful business quarter. The ambient jazz music and the quiet clink of crystal glasses usually brought a sense of comfort, a reminder of the power their families held.

Then, Ha-yun’s phone lit up on the white tablecloth.

She glanced down, her smile instantly vanishing. The color drained from her face so fast that Woo-jin reached across the table, his brow furrowed in concern. "Ha-yun? What is it? Is it the warehouse?"

Ha-yun couldn't speak. Her hand shook violently as she slid the phone across the table toward him.

Woo-jin looked down. His jaw clenched so tightly the muscles in his cheek jumped. His grip tightened around his water glass until his knuckles turned stark white, the glass creaking under the pressure.

"It's impossible," Woo-jin whispered, his voice dangerously low. "Everyone who was there... everyone who knew... swore silence. No one else was supposed to know."

Do-hyun was under the harsh floodlights of the private court, sweat dripping from his forehead as he bounced a ball, preparing for another serve. When he heard his phone buzz repeatedly, he let the ball roll away and walked over to his sports bag.

He pulled out the device, wiping his face with a towel. The moment his eyes locked onto the screen, his breath hitched. The words seemed to burn straight through the glass: The truth of that night is out.

A sudden, suffocating wave of panic hit him. He didn't just feel afraid; he felt exposed. In a blind burst of frustration and fear, Do-hyun spun around and hurled his racket against the heavy chain-link fence. The metal clanged violently, echoing across the empty court as the racket clattered to the ground, warped and broken.

A few miles away, inside the brightly lit walls of the local police precinct, In-ah was staring at the exact same message.

As a police officer, she was trained to handle threats, chaos, and crises without blinking. But this wasn't a standard case file. This was the one secret she had buried deep beneath her uniform. Her fingers froze over her computer keyboard.

Her heart hammered against her ribs as she slowly raised her head, looking around the bustling room. Detectives were talking, printers were humming, and phones were ringing. Everything looked completely normal. Yet, a cold sweat broke out across the back of her neck. For the first time in her career, she felt entirely unsafe inside her own station, wondering if the person who sent the text was watching her right now.