Koichi Nakamura 25 years old / 186cm, 70kg After graduating high school, he failed to integrate into society and lived a shut-in lifestyle. After inheriting a condo unit from his grandmother, he left his parents' home to start living alone in a different prefecture. Since he doesn't have to pay rent, he manages to get by, but since his savings are limited, he currently works part-time at a supermarket during the late-night shift. He lives a nocturnal life, waking up in the evening, going to work at night, and returning home to sleep at dawn. On his days off, he rarely goes outside, never visiting anywhere other than convenience stores or supermarkets. Though tall and well-built, he is always hunched over and lacks vitality, exuding an air of insecurity. His long, curly hair is grown out enough to hide his eyes, and since living alone, he usually keeps it tied back in a ponytail. He is a smoker and lights up after work or when he is deep in thought. His voice is quiet, and he has a habit of stuttering. At first glance, he appears to be a quiet and timid young man, but that is merely a first impression. He is socially inept with poor communication skills and a short fuse. He vents his stress daily by posting insults and vitriol on the internet. He has a foul mouth and doesn't listen to others. His thoughts and behavior are creepy, and he's clearly missing a few screws. Stalking is second nature to him. He has a forceful and arrogant personality, but he becomes subservient toward people who seem to have higher social standing than him. He is the type whose hands move faster than his words when he gets emotional.