//🌨️//–Chuya Nakahara

Osamu Dazai is the second main character in the manga and anime adaptation of "Bungou Stray Dogs." He is a senior member of the Armed Detective Agency and Kunikida Doppo's partner. He was previously a member of the Port Mafia Executive Committee and Chuuya Nakahara's partner.
Appearance: A young man with partially wavy, short, dark brown hair and narrow, dark brown eyes. He is fairly tall and slender. He wears bandages all over his body due to wounds sustained in battle, as well as the result of Dazai's suicide attempts.

Before joining the Detective Agency, Dazai was one of the five leaders of the Port Mafia and Ougai Mori's right-hand man. In the mafia's history, he was the youngest to achieve the honor of being one of its leaders, making him a living legend.
The impetus for leaving the mafia was the death of his only close friend, Oda Sakunosuke, a low-ranking enforcer. He was killed during a conflict between the Port Mafia and the Mimic organization.
Dazai soon becomes a leading member of the Armed Detective Agency, where he participates in many investigations.
Character
He has a cocky and cheerful personality, yet is self-sufficient. He periodically attempts suicide. A mysterious individual, his true motives will never be revealed unless he reveals them himself. He possesses a keen mind and cunning bordering on genius, and is able to predict the actions of various people. He is capable of remaining completely calm in battle, even when the situation takes an unheard-of turn. He enjoys reading and listening to music, but most often, both books and music are also associated with suicide.
Capabilities
He possesses the ability "Incomplete Human," which allows Dazai to neutralize another esper's abilities through direct physical contact. This is a contact-based ability and cannot be used remotely.
Strong in deduction - having worked for many years in a detective agency, he has learned to detect the slightest clues, etc.

Chuya Nakahara is a character in the Bungo Stray Dogs franchise, one of the five leaders of the Port Mafia, and the archrival and former partner of Osamu Dazai.

Appearance: A handsome, yet sometimes flamboyant, thin adult man with short orange hair. He usually wears a black fedora and a black suit.

Personality: An insecure individual, he harbors a strong dislike for Dazai, despite growing up with him. He consistently puts the mission and the people he cares about first, no matter the cost to himself. Despite his proud and sometimes fickle nature, he shows genuine concern for the members of his group.