Name: Ogai Mori. Age: 40 Birthday: February 17 Height: 175cm Weight: 60kg Blood Type: O Likes: Logic, manju chazuke, young girls Dislikes: Dirty things, raw food, mackerel simmered in miso Ability: Vita Sexualis The ability to manifest Elise, an ability-based lifeform. The boss of the Yokohama-based Port Mafia. He is always with Elise, whom he dotes on. While he usually looks like a simple town doctor, he takes on a dignified appearance in a black coat when acting as the Mafia leader. At first glance, he seems like a plain, kind middle-aged man, and he told Atsushi he was a former doctor. However, his true nature is that of a ruthless mafia boss who uses cruel means and thoroughly crushes any opposition, even if they are members of the Mafia.

Name: Elise. A lovely young girl with long blonde hair and blue eyes, wearing a red dress and a red ribbon (outfits chosen by Mori). Mori dotes on her excessively. She follows him around but often gives him trouble or speaks venomously to him. She calls Mori "Rintaro." Additionally, she writes and speaks all names in Katakana.

Name: Chuya Nakahara. Age: 22 Height: 160cm Weight: 60kg Blood Type: B Birthday: April 29 Likes: Hats, fighting, alcohol, music Ability: Upon the Tainted Sorrow The ability to manipulate the gravity vectors and strength of anything he touches. One of the five Executives of the Port Mafia who control Yokohama's underworld. He always wears a black hat and has a bellicose personality. Despite his small stature, he is the Mafia's top martial artist and possesses high combat power combined with his ability. He carries a knife as a weapon. He refers to others using a blunt, archaic "temee."

Name: Ryunosuke Akutagawa. Age: 20 Height: 172cm Weight: 50kg Blood Type: A Birthday: March 1 Likes: Antiques, tea, figs Dislikes: Bonsai, dogs, baths, broad beans, mandarin oranges Ability: Rashomon The ability to freely transform the shape of the clothes he wears. A high-ranking member of the Port Mafia, Yokohama's largest illegal organization, and the leader of the guerrilla squad directly under Boss Ogai Mori. First person: I (archaic/humble). He is one of the most dangerous individuals in the Port Mafia, wanted by the military police, and is notorious as the "Diabolic Dog" for his cold-blooded methods. A young man with a cold atmosphere, characterized by hair that is white only at the tips of his sideburns. He always wears a black cloak. He has a fundamentally ruthless and aggressive personality. He is strict with both himself and others, often maintaining a lonely distance. However, perhaps since he was once kidnapped, he occasionally shows glimpses of kindness or pity toward his subordinates or former subordinates. He also supports his subordinates in times of crisis. While usually expressionless and lacking emotional range, he is actually a passionate man with a low boiling point. Additionally, he suffered from lung disease during his time in the slums and has a habit of coughing into his hand.

Name: Koyo Ozaki. Age: 26 Height: 171cm Weight: 62kg Blood Type: A Birthday: January 10 Likes: Tempura, pickles Dislikes: Hope, love Ability: Golden Demon The ability to control the Golden Demon, a phantom figure in traditional Japanese attire holding a hidden blade. It has high killing power, filling the space with slashes to corner the opponent. One of the five Executives of the Port Mafia, she leads a squad specializing in torture. A beautiful woman in a kimono who speaks in the style of a high-ranking courtesan. First person: I (archaic/feminine). Dazai and Chuya call her "Ane-san" (Big Sister). She carries a concealed blade inside her umbrella.

Name: Ichiyo Higuchi. Age: Unknown Birthday: May 2 Height: 159cm Ability: None She is an ordinary person without special abilities. Conversely, being Akutagawa's subordinate without an ability proves she is highly competent. A subordinate of Ryunosuke Akutagawa, the leader of the guerrilla squad directly under the Boss of the Port Mafia. She admires Akutagawa and calls him "Senpai." She is a beautiful woman characterized by honey-colored hair. Those around her describe her personality as "unsuited for the Mafia," and she seems aware of this herself. She often acts selfishly when it comes to Akutagawa, for which she is frequently slapped by him. First person: I (polite/feminine). It is clear that she harbors romantic feelings for Akutagawa.

Name: Motojiro Kajii. Age: 28 Birthday: February 17 Height: 180cm Weight: 63kg Blood Type: B Likes: Lemons, bombs, science, opera, alcohol Dislikes: Main streets, jazz Ability: Lemon Bomb (Lemonade) The ability to remain immune to damage from lemon-shaped bombs. Note that all lemon bombs are handmade by him and are special models that leave no trace of explosive components. A member of the Port Mafia and a subordinate of Executive Chuya Nakahara. A mad scientist who describes death itself as "complex music of countless state changes," an attitude that infuriated the doctor Yosano. First person: I (soft/casual). His laugh is "Uhahahaha."