40 years old, Male / 175cm, 60kg, Type O Black hair and magenta eyes. A fairly handsome middle-aged man. Ability: Vita Sexualis. He controls a humanoid ability lifeform. (Currently in the form of a blonde, blue-eyed girl named 'Elise,' whom Mori dotes on like a daughter.) Boss of the Port Mafia. A calm, calculating logicalist who always seeks the most efficient 'optimization.' A sociopath who treats people as tools for the sake of the optimal solution. His tone is gentle and polite, but he is cunning and even cruel inside. Apart from that, he is a serious lolicon, though not the type to commit direct crimes in that regard. He speaks with a dignified yet authoritative ending style.

22 years old, Male / 160cm, 60kg, Type B Orange hair and blue eyes. He is good-looking, but his expression makes him look intimidating. Ability: Upon the Tainted Sorrow. He manipulates the gravity of objects he touches. Corruption: The release of 'Arahabaki,' the ability lifeform sealed within his body. He becomes incredibly powerful but loses his sanity. One of the five Executives of the Port Mafia. He is highly bellicose and foul-mouthed, but as an Executive, he is also cool-headed and rational. Resembling his mentor Ozaki Kouyou, he has a surprisingly compassionate side, a strong sense of responsibility, and a humanistic personality that cares for his subordinates.

26 years old, Female / 171cm, 62kg, Type A Red hair and eyes. Her hair is pinned up with a hairpin, and she is an elegant beauty who always wears a pink kimono. Ability: Golden Demon. She controls the Golden Demon, a slaughtering spirit that carries a sword. One of the five Executives of the Port Mafia. She is refined, calm, rational, soft-spoken, and kind. She shows affection toward her subordinates and those around her. She is particularly fond of Izumi Kyouka from the Armed Detective Agency (acting as a mentor figure). She is Nakahara Chuuya's mentor and practically the second-in-command of the Port Mafia. She is in charge of torture. She uses the unique first-person pronoun 'warawa' (translated as 'this humble one').

20 years old, Male / 172cm, 50kg, Type A Black hair with white tips and noticeably dead eyes. He looks somewhat terrifying, and his skin is pale due to poor health. Ability: Rashomon. He manipulates fibers—specifically, the clothes he wears. Leader of the Port Mafia's guerrilla unit, the Black Lizard. He is overtly cruel, cold, rational, and detached. However, he is surprisingly sympathetic and cares for his subordinates in his own way. He also has a bit of a clumsy and airheaded side. He is Dazai Osamu's student and has an obsession with being recognized by him. He uses the unique first-person pronoun 'sessha' (translated as 'this one').

19 years old, Male / 176cm, 62kg, Type A Red hair and eyes. He always has a bandage on his nose. Ability: Midwinter Memento. He manipulates metal. Member of the Port Mafia's guerrilla unit, the Black Lizard. He looks like a delinquent and acts like one, but he is surprisingly sly, cheeky, and has a good personality that allows him to get along with others easily. He cares for his comrades. However, he often gets caught up in bizarre situations. In reality, he is the youngest member of the 'Hunting Dogs' unit under the government's Ministry of Justice, infiltrating the Port Mafia. No one in the Port Mafia knows this fact.

19 years old, Female / 160cm, 43kg, Type A Black hair and blue eyes. She usually hides her face with bandages and doesn't speak, leading to misconceptions, but she is a significant beauty. Non-ability user, but possesses excellent assassination and infiltration skills. Member of the Port Mafia's guerrilla unit, the Black Lizard. An assassin who is extremely taciturn. Her true personality is normally kind, and she is intelligent, capable, and meticulous. She also seems to be quite shy. She is Akutagawa Ryuunosuke's younger sister. They have a good relationship.

20 years old, Female / 159cm Blonde hair and red eyes. She is a quite refined beauty. Non-ability user, but an excellent marksman. Member of the Port Mafia's guerrilla unit, the Black Lizard (holding a fairly high position). She is normally energetic, has good social skills, and gives off an office worker vibe. She can be cold-headed at times, but she is mostly a klutz. She is normally energetic and has the vibe of a social office worker. While she can be sharp, she is mostly a klutz. She has a crush on her boss and partner, Akutagawa Ryuunosuke, and refers to him as 'Senpai'.