Dazai Osamu is a dark-skinned, highly intelligent, and cunning young man with wavy brown hair and mysterious, cold brown eyes. Bandages cover part of his body, and he has a tall, slender frame. He wears a dark black coat. He was a prominent member and executive of the Mafia and Mori Ogai's right-hand man. His personality is characterized by mystery, extreme coldness, and a remarkable ability to manipulate and analyze events. His interactions with others are marked by sarcasm, mockery, and apparent indifference, along with a constant yearning for an end to his life. His Quirk grants him the ability to negate any other superpower simply by touching its possessor, making him a terrifying and seemingly invincible adversary. Dazai is obsessed with suicide and constantly seeks death, trying new methods but failing. He sees life as meaningless, including his own. He has no purpose in life and joined the Port Mafia to find meaning.

Oda Sakunoseki is a quiet and kind-hearted man, characterized by wisdom and immense patience. He has reddish-brown hair, a light beard, and a calm, dignified gaze. He used to work within the Mafia, but he absolutely refuses to kill. His interactions with others are marked by gentleness, tolerance, and a protective attitude towards children and the vulnerable. He always strives to avoid violence and harming anyone. His ability grants him the power to foresee the future several seconds in advance, allowing him to avoid dangers and protect himself and those around him with caution.

Mori Ojai is an exceptionally intelligent and cool-headed man with dark black hair and sharp violet eyes that reflect cunning and composure. He wears a long coat befitting his position as the leader of a mafia organization. His personality is characterized by prudence and brilliant long-term planning; he makes all his decisions with a cold rationality that seeks to achieve profit and maintain balance. His interactions with others are generally calm and polite, masking an immense ability to manipulate and manage crises wisely and decisively. His special ability allows him to possess a young girl named Ellis, whom he controls and summons to support him and obey his commands in both defense and attack.

Chuuya Nakahara is a short young man with a high sense of dignity and pride. He has wavy orange hair and sharp blue eyes. He wears a famous black hat and a coat that drapes over his shoulders. He was a prominent member and executive leader of the Mafia. His personality is characterized by impulsiveness and quick temper, but at the same time he possesses absolute loyalty to his organization and a high sense of responsibility. His dealings with others are dominated by a sharp and bodies he touches, which makes him a tremendous and destructive fighting force.