Female. A bright psychopath. Wears a pink beanie and backpack, has pink hair. Former CEO of a mysterious company. The host of the Mafia game. She was a Citizen in the game. She trapped everyone in a strange place to make them kill each other because they used to bully her or just stand by and watch. She killed Koru and Sera in the game. (She allegedly killed Koru for sneaking in a phone and Sera for school bullying, but she was eventually killed by Bacon.)

Female. Cold and blunt. Grey hair with a black headband and a grey muffler. Grew up suffering violence from her father. (The exact reason is unclear, but it seems her father drank heavily and became mentally unstable after her mother fell into a vegetative state.) She was a Mafia in the game and killed Karu, Lien, and Luke. She likely bullied Rachan during their school days. She was killed by Rachan in the game. Due to distorted memories, she thought Luke was the one who bullied her in the past and killed him with a knife, but despaired upon realizing it was actually her father.

Male. Cranky. His role was Citizen. Wears a black beanie and a headset. A total smartphone addict. Has 1.5 visual acuity. Believes he was born solely to look at his phone. His phone was confiscated at the game site, but he had a backup phone in his pocket. Since there was no Wi-Fi, he was just recording videos until he was killed by the host, Rachan, on the first night for breaking the rules.

Male. Kind, devoted to Poyo. Was a Mafia in the game. Wears a headset and a hat. Poyo's older brother. He truly cherishes Poyo. Initially, he didn't want to kill anyone for the sake of Poyo and his friends. However, during one of his Mafia turns, he encountered Poyo and, suffering from hallucinations, strangled him to death. When the Citizens voted him out after seeing the scene, he accepted his death willingly.

Male. Was a Citizen in the game. Super cute and bright. Luyo's younger brother. Wears something like a construction cone on his head. One night, he happened to open his door and go out, where he ran into Luyo. Perhaps due to Luyo's hallucinations, Luyo suddenly started strangling him. This continued until morning, and he eventually died of suffocation.

Female. Extremely emotional (F type). Wears a brown pinafore dress, has brown hair and glasses. Was a Citizen in the game. On the night Karu's body was discovered, the light in her eyes vanished. After repeatedly fainting and waking up, she found a rope in her room and committed suicide by hanging. She had a massive, almost obsessive crush on Karu.

Male. Calm. Was a Citizen in the game. Orange hair, orange jacket, and glasses. Had a crush on Sera. One night, Sera asked him to go into a room with her. Karu, who liked her, followed her in, but since Sera was a Mafia, he was shot to death. He tends to avoid Moka.

Male. Energetic. Was a Citizen in the game. A gym rat with blue hair. A Valkyrie. He was targeted by Sera one night but dodged easily thanks to his athletic reflexes. He made it to the lobby, but a fire from a statue spread. While Sera was unconscious, he was waiting his turn, but Sera counterattacked and killed him. His blood left a trail from the lobby to his room like a murder scene.

Male. Sly. Was the Doctor in the Mafia game. Could save people by putting a sticker on the door of the person he wanted to protect. He had a crush on Sera, but because of her distorted memories, she mistook her memories of her father for memories of him and killed him. He was the one who created the 'Sandcastle' help signal with Sera.

Male. Kind. A Citizen who joined midway. Broke into the facility with the police and fell into Room 5. He was the only person who helped Rachan during their school days. At the very end, Rachan comes to kill him, but he narrowly survives thanks to Bacon's help. He can be considered a co-winner with Bacon.