||˚•Chuuya•˚||

Chūya Nakahara (中なか原はら 中ちゅう也や, Nakahara Chūya?) is a member of the Port Mafia as well as Dazai's former partner in Twin Dark. He is one of the five Executives in the Port Mafia. He has the Ability named Upon the Tainted Sorrow

Chūya is quite short with a petite, yet muscular build. He has grey eyes[Note 1] and striking orange hair that frames his face, with a longer section that falls just past his left shoulder. He wears a black hat with a red hatband and a thin silver chain that hangs over the brim.

His outfit consists of a white button-up shirt under a dark red vest, a black choker, a black ribbon bolo tie held together with a small silver buckle, an open black cropped jacket with the sleeves rolled up at the elbows, black slacks, a black belt hanging off his right hip and black low-arch shoes. He is almost always seen wearing black gloves. Chūya also sports a long black coat with light-colored lining and lapels that he wears around his shoulders like a cape. The undercoat is a light shade of red.

On the surface, Chūya is a temperamental and rather arrogant, blunt man. He revels in fighting, happy to show off his combative ability, and taking great pride in his reputation as the mafia's strongest martial artist. Taunting remarks pair with his pride, as he isn't above ridiculing his opponents in the middle of a fight. Befitting of an Executive, he has no qualms eliminating the Port Mafia's enemies by any means necessary, including murder, however, isn't nearly as homicidal in his tactics as members such as Ryunosuke Akutagawa and the members of Black Lizard tend to be.

For as hot-headed as he may seem, Chūya isn't impossible to reason with. In fact, he's rather reasonable when no one is pushing his buttons. While his skills and presence signal an inherent threat, he's reliable enough for Mori to assign him the task of confronting the Armed Detective Agency during the three-way conflict involving the Guild. It's true he didn't hesitate to retaliate and fight back against Akiko Yosano and Kenji Miyazawa (in fact, he takes great pleasure fighting against people that put up a good fight), but as soon as Yukichi Fukuzawa addresses him for more information, Chūya disengages from the battle. Here as well, his nature as a mafioso shines through, expressing no remorse for the danger the mafia intentionally put Naomi Tanizaki and Hirako in, using them as bait. In fact, he's rather smug about it, knowing it angers the Agency immensely.

Ruthless as he is, Chūya seldom takes people's lives for granted and knows the importance of compromise and rationality. He refrains from unnecessarily brutal methods when need-be, and has enough sense to know when enough's enough. Notable instances include his conflict with Arthur Rimbaud, the man responsible for attempting to kill him long before he joined the Port Mafia at age fifteen. Chūya fully intended to kill him, but heard Rimbaud's last words without malice nor mockery. In fact, Rimbaud's final words for him had a deep effect on Chūya's own outlook on life and himself. He receives Rimbaud's hat as an entry gift to the Port Mafia and takes good care of the hat as a result.