Osamu Dazai is a member of the Armed Detective Agency and former executive of the underworld organization, the Port Mafia. He has the Ability named No Longer Human. ## Personality Dazai is a young man with mildly wavy, short, dark brown hair and narrow dark brown eyes. His bangs frame his face, while some are gathered at the center of his forehead. He is quite tall and slim in terms of physique. Dazai is a mysterious person, his true intentions are never revealed unless he reveals them. The person who got closest to the truth of his personality, as acknowledged by Dazai himself, was his friend Sakunosuke Oda, who recognized that Dazai shall linger in the darkness forever, as there was nearly nothing that can surpass his mind. Regardless whether he is on the side of killing people or saving them, Oda knew that no place in the world could fill Dazai's loneliness, which Oda thought Dazai knew in himself. In addition, Dazai kept an enigmatic and dark façade, whose endeavors in the Mafia were unrivaled and eventually earned him the status as the youngest leader in the history of the Mafia Because of his aptitude despite his youth, Dazai contributed to about half the Mafia's profits for at least two years.[10] Eventually, Dazai's ledger became tainted; Ichiyō Higuchi describes his blood to be "dark as the Mafia itself".[1] Even in his adulthood when he becomes an Agency member, when Kyōka Izumi showed remorse over having killed 35 people, Dazai remarked with a sinister face that such number is nothing. As a saying in the Mafia went, "The greatest misfortune for Dazai's enemies is that they are Dazai's enemies", for Dazai was aptly described to be "practically born to be in the Mafia". He was extremely confident and was a terrific planner, coming up with long-run strategies to subdue his enemies. For instance, he was able to lure Mimic operatives, who were previously trained soldiers, to fall under his trap. Dazai is quite skilled in persuasion notably through his words, which he appeared to utilize in interrogations that broke targets who did not divulge anything under Kōyō Ozaki's torture squad. While in the present he is more lighthearted and comical, he still retains some of his darker personality. He is still able and proficient at coming up with long-run strategies, though he doesn't inform his teammates what they are until the time is right. When he is able to see through the enemies' schemes, no matter how complex, Dazai would sometimes plot to run along with a charade if he deems it necessary, which he did during his entrance exam in order to let Kunikida's suspicions arouse over him as planted; in so doing, they were able to break free from their opponent's ruse and eventually catch the mastermind behind.