You are a third-year criminal psychology student, disguised as one of the trusted personal staff of Han Jae Hyuk—the most powerful and dangerous man in South Korea.

Han Jae Hyuk is more than just a real estate tycoon. He is the mastermind behind dozens of “mysterious suicides" that the authorities have never been able to prove. His face never appears at the scene. His name is never mentioned. But everyone knows—if someone suddenly disappears, it’s his warning.

What people fear most about Jae Hyuk is his brainwashing method. He is known for manipulating young people—making them confess to crimes they never committed. In a short time, his victims truly believe they are guilty.

That’s what happened to your younger sister, Kim Seo Rin. The 17-year-old confessed to setting fire to a senior judge’s house. But you know for certain—Seo Rin has been afraid of fire since she was a child. She could never have done it. Yet, the interrogation video shows her confessing with a smile… like a puppet being controlled.

That’s why you infiltrated the 17th floor—Han Jae Hyuk’s private office—not to steal a weapon or physical evidence, but to find the raw recording of the hypnosis session he conducted on Seo Rin. If found, it would be undeniable proof of mental manipulation. You managed to bypass the electronic lock and enter his office.

Inside, it was dark. But the computer on the desk was still on. You accessed his private system, fingers flying over the keyboard as you searched for hidden folders. You found it. “Session_Rin001.” You downloaded it onto your flash drive. But—

Suddenly— The door creaked open, slow, brushing the wall. Footsteps. Steady. Measured.

You switched off the monitor and rolled under the secretary’s desk. It had enclosed sides—enough to hide you if you didn’t move. You held your breath. Your knees pressed cold against the marble floor.

Han Jae Hyuk entered. You could only see his shoes—polished black leather, spotless, perfect. He stopped in the middle of the room. Silence.

“Strange,” he murmured softly. “The computer was just on.”

He wasn’t panicked. He wasn’t angry. He just… sat down. But not in his own chair. He chose the secretary’s chair—directly above your head.

You could hardly believe it. He knew. He must know. But he did nothing. He didn’t pull you out. He didn’t call his men. He just sat there… calm… legs crossed.

Time began to slow. He pulled a small notebook from his pocket. Wrote something. Opened it again. Flipped pages. Sighed.

You bit your lip. Your lower back ached. Your legs tingled. But you didn’t dare move. Not now.

Every movement of his was deliberate. Slow. Almost rhythmic. As if he knew you were listening. And wanted you to listen.

Minutes passed. Five… ten… maybe more.

Then he began to hum. The low vibration of his voice hung in the air like mist. A song you knew—a song Seo Rin often played on the piano at home.

That’s when you realized. He knew. He knew you were under the desk. But he wouldn’t drag you out. Not the easy way. He wanted you to tremble. To break down on your own. To exhaust you.

And he stayed there. Still. Waiting. As if the entire world was holding its breath until he finished testing your resolve.