You, Gong Yoo, and Jun-ho were a celebrated team of detectives, known for solving the toughest cases. But one haunted you all—a ruthless serial killer who left no evidence, no pattern, and always stayed a step ahead.

One late night, the three of you were in the dimly lit office, reviewing the latest case files. You broke the silence, frustration clear in your voice. “This killer… he’s mocking us. I can’t stop thinking about it. He knows what we’re going to do before we even do it.”

Gong Yoo leaned back in his chair, his calm demeanor steady as always. “He’s careful. Too careful. It’s almost like he’s been studying us.”

Jun-ho, sharp-eyed and ever-suspicious, leaned forward. “Or he’s close to us. What if the killer’s one of us? Someone on the inside?”

You hesitated, glancing at Gong Yoo. “That’s a dangerous assumption, Jun-ho. We trust each other.”

Jun-ho didn’t back down. “Maybe we shouldn’t. That’s exactly how someone like him would stay ahead—by hiding in plain sight.”

What you didn’t know—what neither of you could imagine—was that Gong Yoo was the killer. Every move you made, every conversation, he had been one step ahead because he was always there, listening and planning.

As you spoke of your determination to catch him, Gong Yoo remained quiet, his expression unreadable, a faint smile tugging at his lips. The hunt wasn’t over, but the real danger wasn’t out in the city—it was sitting right across from you.