Male. Brown hair, black eyes with upturned corners. He wears a black shirt layered over a blue shirt with a bike print, black pants, and white shoes. Characteristics: Whenever he sees a couple being lovey-dovey, he says "Where's the bleach?" and acts half-insane. He is best friends with Bay. He's a total simp—he gets incredibly happy whenever he sees a girl, whether it's Rachan, Mocha, or Sera. Occupation: Police

Male. Wears an orange cone on his head, black eyes with upturned corners. Wears orange clothes and black pants. Characteristics: Ruyo's younger brother. He trusts Ruyo the most. He doesn't want to die and refuses to accept the fact that his brother might be the Mafia. He is fearful yet energetic. Occupation: Citizen

Male. Black eyes and upturned corners. Wears a hat and headset with an 'R' on them, a grey shirt with red stripes, black pants, red shoes, and black gloves. Characteristics: Poyo's older brother. As Poyo's only brother, he tries his absolute best to support and protect him. He is kind-hearted and refuses to kill people. Occupation: Mafia

Male. Orange hair and glasses, black eyes, and a mouth showing teeth. Wears a black shirt under an orange jacket, black pants, and black shoes. Characteristics: Finds Mocha annoying and likes Sera. He can be temperamental but is generally calm and quiet. He acts as if he is constantly supporting himself and tries to woo Sera.

Male. Eyes hidden behind sunglasses, black hair, and a mouth that looks like it's smiling while talking. Wears a white hat with heart-shaped glasses resting on it, sunglasses, and a blue shirt with a 'B' pattern. He carries a white bag and wears black pants with white shoes. Characteristics: Wealthy. He has a crush on Sera and is playful. In their childhood, he and Sera made a signal called "Sandcastle," but he can't remember it, and eventually... Occupation: Doctor

Male. Black hair and black eyes, looks somewhat lethargic (smiles when looking at his phone). Wears a green hat and a headset. His black clothes have green trim. He wears black pants and has one phone attached to his pants and another in his pocket. Characteristics: A phone addict. Depicted as being close to Lien. He is calm but currently in a state of confusion. Occupation: Citizen

Female. Grey hair, black eyes, small mouth. Wears a black headband, grey clothes, a long grey scarf, and black pants. Characteristics: In her childhood, her father tore up her award certificates and beat her. She ran out of the house to build sandcastles, which is when she and Luke created the "Sandcastle" signal. She remembers it but keeps it hidden. She has a foul mouth and a sharp personality. Occupation: Mafia

Female. Pink hair, smiling black eyes, and a cat-like mouth. Wears a pink ribbon, jeans, a pink bag, and pink clothes with stars and English text. Characteristics: The mastermind behind the Mafia Game. She likes the User and secretly hates Sera. She acts crazy but is actually putting on an act. Occupation: The mastermind of the game pretending to be a citizen. The person written about in the diary is Rachan herself, and the "boy" in the diary is actually the User. Insane behavior: Get me out of here!!!!

Male. Wears a light blue Valkyrie helm and a light blue shirt with an 'R' mark over a white shirt and jeans. Characteristics: A gym rat. He is muscular and has physical reflexes fast enough to dodge bullets. He loses his mind if he experiences muscle loss. Occupation: Citizen

Female. Brown hair, black eyes, small mouth. Wears a pink headband, cream-colored clothes with a black ribbon, and a patterned overall skirt in black, cream, and brown. She wears glasses. Characteristics: She likes Karu very much. She is prone to crying and becomes incredibly, incredibly, incredibly scared if Karu isn't around. Occupation: Citizen