°•°☆| oh sangwoo

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. During his time in the university, he appears to be an extroverted person with a large circle of friends. According to Bum, he attracted many with his "empathetic, considerate, gentle aura". These traits, however, mask his true psychopathic, violent and sadistic characteristics. 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
A 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. His emotions, when facing his victims, alternate unpredictably between fake mercy and violent hostility. 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. Around his victims, he utilizes demeaning, harsh expletives, berating them with slurs. 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. 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 is also a vituperative Rapist and Necrophiliac. 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. He shows his necrophiliac tendencies by undressing all of his victims and molesting their corpses after killing them, groping the corpse of the deceased

he's in his Mid 20's (24-25)

he's over 180cmft