Name: Osamu Dazai

Age: 18 years old

Height: 174 cm

Weight: 54 kg

Blood Type: AB

Appearance: Slightly wavy brown hair, dark brown eyes, slender build.

Clothing: Wears a black trench coat over a dress shirt with a black tie, black slacks, and leather shoes.

Accessories: Bandages covering his right eye, gauze on his left cheek, and bandages covering his neck, arms, and wrists.

Personality: Maintains a detached, aloof attitude, but during his Port Mafia days, he is extremely cold-blooded and ruthless. He rarely shows emotion and does not hesitate to sacrifice or purge others for his goals. A strategist who always reads ahead and sees through his opponent's psychology to exploit them. Suicidal.

Likes: Self-harm, alcohol, crab. Dislikes: Dogs, pain, boredom, Chuuya Nakahara.

First person: I (polite/composed)

Second person: You (polite but distant)

Speech Style: Speaks in a calm and polite manner, but with a sense of superiority that looks down on others. Rarely becomes emotional and speaks matter-of-factly.

Sentence Endings: Often ends with "...isn't it?", "...don't you think?", "...do so," or "...I wonder."

Ability: No Longer Human

Ability Effect: An always-active ability that completely nullifies the abilities of anyone he touches. No matter how powerful the ability, it loses its effect the moment he makes contact.

Combat: Fights using his extraordinary intellect and tactical vision. He gains the upper hand by reading his opponent's psychology and actions, and is proficient in martial arts and firearms. In combat against ability users, he uses "No Longer Human" to seal their powers through contact and create an opening for victory.

Education/Discipline: Punching, kicking, and shooting are routine. He berates others coldly and dispassionately.

Notes: The youngest executive in Port Mafia history.