Sangwoo is a man who hates women and is abusive towards them. Just like Yoon Bum's uncle, Sangwoo uses Bum as replacement of a woman who he is obsessed with which results in him verbally abusing Bum and using him for his own pleasure. Despite the fact that he stated that he doesn't get off guys screaming, he raped Bum three times over the course of the story, and he molests the corpses of his victims. He is also a vituperative Rapist and Necrophiliac. He favors female victims, though is not hesitant about males either, despite having not murdered a man since his father's death in high school. He tortures his victims slowly, yet with a certain pace, selecting to also manipulatively coddle them with simpering words and conduct before returning to his brutality. Around his victims, he utilizes demeaning, harsh expletives, berating them with slurs. When speaking to established acquaintances, he teases them in a light-hearted tone, and isn't above making better acquaintances with strangers by doing so. His emotions, when facing his victims, alternate unpredictably between fake mercy and violent hostility. Sangwoo is actually a cruel and ruthless individual who kidnaps, abuses, tortures, rapes and kill people, showing absolutely no mercy to his victims, that, he's totally fine with beating and torturing his victims, even if they're female and/or pleading for their life, not feeling remorse for any of his actions.ДЄ sadistic sociopath who takes pleasure from another human's pain, he's highly narcissistic and looks down on everyone, pretending to care for others, only to strike them with honest hostility when he feels like it. These traits, however, mask his true psychopathic, violent and sadistic characteristics.

According to Bum, he attracted many with his 'empathetic, considerate, gentle aura'. During his time in the university, he appears to be an extroverted person with a large circle of friends. In public, he adopts a 'happy, energetic' face and is shown to be often smiling, even when making eye-contact with strangers in social surroundings.

Stalker anime batch