Killing Stalking Chapter 1

After their military service ended, Bum and Sangwoo went their separate ways—but Bum never forgot. When they coincidentally crossed paths again on the street years later, Bum's dormant obsession reignited with terrifying intensity. He began stalking Sangwoo, learning his routines, his home address, even the passcode to his front door by using powder to reveal frequently pressed numbers on the keypad.

Before Bum can process this horror or escape, Sangwoo appears behind him. The chapter closes with a chilling, smiling Sangwoo striking Bum down with a golf club. Visual Storytelling and Psychological Themes

However, the superficial normalcy of Sangwoo's house soon gives way to a nightmare. Bum's quest for connection leads him to a locked basement door. Pushing it open, he doesn't find the charming man he's fantasized about. Instead, he discovers a horrifying secret: a terrified, bruised, and bound young woman imprisoned in the basement. In this devastating moment, Bum's delusion shatters. The "perfect" Sangwoo is, in reality, a sadistic serial killer. The tension reaches its peak as Bum is discovered, and the chapter ends not with an escape, but with Bum being captured, violently beaten, and dragged into his own horrific fate. killing stalking chapter 1

The chapter establishes every major theme of the series:

The chapter primarily follows , a young man suffering from severe social anxiety, obsessive-compulsive disorder, and a fixation on his former high school classmate, Oh Sangwoo . Bum’s narrative is presented through an intimate, often claustrophobic first-person lens, immersing the reader in his warped perceptions and desperate loneliness. After their military service ended, Bum and Sangwoo

Bum, frozen in terror, witnesses the entire scene: the violence, the dismemberment, and Sangwoo’s chillingly composed demeanor afterward. When Sangwoo approaches the closet to dispose of bloodied sheets, Bum’s phone rings, exposing his hiding place. The chapter ends on a cliffhanger with Sangwoo slowly opening the closet door, a neutral yet terrifying expression on his face, trapping Bum in the ultimate predator-prey reversal.

Sangwoo is there. He isn't angry. He isn't panicked. He looks... amused. Almost bored. Before Bum can process this horror or escape,

Koogi utilizes muted tones and erratic panel layouts to convey Bum’s fractured mental state. Bum does not simply admire Sangwoo from afar; he stalks him. He tracks Sangwoo's daily routines, collects discarded items, and spends his nights staring at Sangwoo’s social media profiles. This obsession is presented not as a romantic crush, but as a desperate, coping mechanism for a deeply broken individual seeking a savior. Breaking the Threshold