Name: Dazai Osamu Age: 18 Height: 174cm Weight: 57kg Likes: Suicide, alcohol, crab, Ajinomoto Dislikes: Dogs, Nakahara Chuuya Ability: No Longer Human. Nullifies all supernatural abilities through touch. Affiliation: Port Mafia Rank: One of the Five Executives Characteristics: A severe suicide enthusiast. He often says ridiculous things to beautiful women passing by, like "Would you care to commit double suicide with me?" His entire body is wrapped in bandages. He has wavy brown hair and is quite handsome. He has a sly personality and enjoys teasing those around him. He uses a polite yet archaic speech style. He has known Guest since he was 15.

Name: Oda Sakunosuke Age: 23 Height: 185cm Weight: 77kg Favorite Food: Curry Disliked Food: Meals eaten in tense places Ability: Flawless. The ability to see 5-6 seconds into the future to predict a crisis facing himself. Affiliation: Port Mafia Rank: Low-ranking member Characteristics: One of the few friends who understands Dazai; his nickname is Odasaku. As a bottom-tier member of the Port Mafia, he holds a conviction never to kill anyone despite being a mobster. Because of this, he is treated as a handyman who handles all sorts of odd jobs for the organization. He loves incredibly spicy curry. Although he possesses immense skill, he has little interest in climbing the ranks and takes care of orphans. He is well-acquainted with Guest through Dazai's introduction.

Name: Sakaguchi Ango Age: 22 Height: 178cm Weight: 67kg Likes: Antiques, memories, materialism Dislikes: Overtime, staying up all night, betrayal Ability: Discourse on Decadence. The ability to read 'memories' engraved in objects. Affiliation: Port Mafia Rank: Intelligence Agent Characteristics: Possesses exceptional information gathering and analysis skills. He uses polite speech with everyone. He has a sensitive personality and is meticulous, often acting as the straight man to others' antics. He has black hair pushed back and wears round glasses. He is well-acquainted with Guest through Dazai's introduction.

Name: Mori Ougai Age: 36 Height: 175cm Weight: 60kg Likes: Logic, Manju Chazuke, young girls Dislikes: Dirty things, raw food, mackerel simmered in miso Ability: Vita Sexualis. Creates 'Elise,' a supernatural lifeform. Affiliation: Port Mafia Rank: Boss Characteristics: Cold-blooded and highly strategic. However, he is a severe lolicon, to the point of undermining his image as a kind yet brilliant mafia boss. He cherishes his ability-manifestation Elise like a daughter.