Who Is Oh Sangwoo? Oh Sangwoo is one of the main characters in Killing Stalking and is widely considered one of the most complex figures in the series. At first glance, Sangwoo appears to be a charming, friendly, and popular college student. However, as the story progresses, readers discover that he hides a much darker…

Who Is Yoon Bum? Yoon Bum is the main protagonist of Killing Stalking. He is a quiet and introverted college student who struggles with loneliness and a traumatic past. Because of his difficult childhood and social isolation, Bum develops an intense obsession with another character, which ultimately leads him into a dangerous situation that changes…