Hae-sung and his team now face dire consequences; their only path to redemption within the National Intelligence Service lies in accepting an assignment of almost unbelievable difficulty. Their mission: infiltrate Byeongmun High School, a b…

Hae-sung edged closer to the dilapidated structure of Byeongmun High, a thrill of anticipation warring with a prickle of apprehension. The rumors surrounding the school’s history had only intensified his resolve; he was convinced the gold l…

Chairwoman Seo recognized a crucial clue within the ancient building, immediately suspecting its link to the missing gold. She placed Hae-sung under close observation. As he explored the school's haunted history, Hae-sung became entangled…

Hae-sung attends the anti-bullying committee session with a crucial witness who helps clear his name, while Dong-min finally finds the courage to speak for himself. With his reputation restored, Hae-sung discovers a hidden grandfather clock…

A growing unease settled upon Hae Seong. The more he learned, the more acutely he felt the risk of exposure. His suspicions, if discovered, could unravel everything. Yet, against all odds, he secured a place on the student council. With thi…

A security guard at the facility died, leaving Hae Seong a notebook belonging to his father. The revelation was jarring, and he stormed into the NIS demanding answers. The response he received shifted his focus from the mission, prompting h…

Recognition sparked in Hae Seong’s eyes – Bong Ja. The name, a whisper from the past, stirred a forgotten ache of first love, pulling him away from the task at hand. He fought the distraction, yet the memory lingered, threatening to unravel…

Hae Seong found himself increasingly alienated, suspicion clouding his perception of those around him. The possibility of a hidden presence within the NIS fostered a growing distrust, casting doubt upon the very purpose of their mission. …

Hae Seong and his team, following a break-in, identify the perpetrator as Lee Jun Ho, the mathematics teacher. The culprit is revealed after Hae Seong discovers his father’s notebook is missing, realizing Seo Myeong Ju orchestrated the cri…

She returned to the academy, Seo Myeong Ju, unmoved by the sight of Hae Seong. With decisive action, she dismissed him and showcased her formidable power by systematically dismantling his team. Yet, Hae Seong, undeterred, and with the aid o…

A sense of foreboding settled upon Seo Myeong Ju as the situation unfolded; she suspected Hae Seong possessed something he shouldn't. Within the vault's depths, Hae Seong made a devastating discovery: the remains of his father. Grief washed…

He managed to reach Su A and his team, the only evidence they could secure being the flash drive containing the voice recording of Principal Park confessing to the murder of Director Kim Hyung Bae. Learning that an arrest warrant had been i…