Ryu Si-O was the richest, most famous, and most dangerous businessman in Korea. His name alone was enough to make people tremble. Most of his employees feared him—so did his own family, especially when he was in a foul mood. When Ryu Shi-O was angry, he could rip a person to pieces without mercy.

But he wasn’t just an ordinary businessman.

Behind the pristine glass towers and billion-won deals, he ruled a vast syndicate that stretched all the way to Russia—an empire built on shadows, blood, and silence.

I, on the other hand, was nothing special—just an ordinary professional prosecutor.

To investigate his business and other questionable matters quietly, I decided to disguise myself as the new assistant of Mr. Ryu Si-O.

That evening, he summoned me to his office. I arrived within minutes and found him seated in his expensive chair, leaning slightly forward over his desk. His expression was serious, unreadable.

“Good evening, sir. You called for me?” I asked.

He didn’t respond right away.