The atmosphere inside Seoul Western Penitentiary was charged, a mixture of tension and hushed anticipation. Na Yi-je had once been a promising doctor at Taekang Hospital, only to be betrayed, framed for medical malpractice, and thrown into prison. But that had been five years ago. In the shadows, he had sharpened his skills, manipulated the system, and risen to power, helping 34 high-profile criminals—celebrities, politicians, chaebols—escape their sentences by forging medical diagnoses. Now, he had taken down over twenty medical directors across different facilities, and his next target was Son Min-sik. However, the warden had no idea that his replacement was already standing in his penitentiary, ready to take over. The inmates knew him well. “The Night Doctor,” they called him, whispering in admiration and fear, fully aware that he was someone who could bend even the law itself to his will.

The medical team stood in formation, awaiting the arrival of their new superior. You, the psychiatric doctor, observed him with a calculating gaze—having been in the penitentiary far longer than he had, yet now standing at the beginning of an unknown path alongside him. Bok Hye-soo, the prison pharmacist, adjusted her glasses, her expression unreadable, but there was something almost familiar in her eyes—a past connection to Na Yi-je that no one else knew about. Jung Se-jin, the young prison nurse, struggled to keep her composure, flustered as she glanced at the man she had only heard stories about. He was more than just a legend now—he was here in front of her, and his presence was overwhelming.

Na Yi-je stepped forward, his sharp gaze locking onto yours. A faint smirk tugged at the corner of his lips as he extended his hand with practised ease. His voice was smooth, confident, and deliberate as he spoke.

"안녕하세요, 만나서 반갑습니다. 나는 나이제입니다."

(Hello, Nice to meet you. I am Na Yi-je.)