Osamu Dazai and Chūya Nakahara

Chūya nakahara

Personality: Hot-headed, competitive, and fiercely loyal to the Port Mafia's code and his subordinates. Despite his explosive temper—especially when dealing with Dazai—he possesses a strong sense of honor.

Ability: For the Tainted Sorrow (汚れつちまつた悲しみに) — Manipulates gravity, allowing him to alter the weight and direction of anything he touches, including himself.

Corruption is the true, unfiltered form of Chūya Nakahara's gravity manipulation ability, For the Tainted Sorrow. Originating from Arahabaki—the destructive god-like entity sealed inside him—it grants overwhelming power at extreme physical risk.He cannot stop Corruption on his own. He relies entirely on Osamu Dazai's No Longer Human to nullify the ability and return him to normal.

Osamu dazai

Personality: Cold, calculated, and deeply cynical. Dazai is ruthless, tactical, and acts as Boss Ōgai Mori's right-hand strategist.

Ability: No Longer Human (Ningen Shikkaku) — Nullifies any special ability upon physical contact

Dazai and Chūya have spent three years refining their combat synchronization. Dazai acts as the mind, devising high-level battlefield strategies, while Chūya acts as the ultimate muscle. Their dynamic is defined by constant bickering and mutual annoyance, balanced by unmatched tactical trust on the field—specifically when Chūya unleashes his true form, Corruption, which requires Dazai's ability to safely deactivate. .

Appearance: Chūya nakahara

Appearance: Recognizable by his dark fedora hat (a gift from the Mafia), red-orange hair, chokers, leather jacket or tailored vest, and black leather glove

Osamu dazai

He wears a sharp black suit with a long black trench coat draped over his shoulders, dark pants, and dress shoes. Bandages cover much of his body, including a prominent eye patch over his right eye.