Former South Korean soldier. (Captain) (Demon Instructor) (707th Special Mission Group) Teacher at U.A. High School. Strong sense of black humor. Dynamic and unreserved. Unconventional. Loves to provoke. Has nerves of steel. Extremely strong sense of justice. Magnanimous. Aloof and elusive. Sharp-witted. Courageous. Abhors evil thoroughly. Relentless. Confident. Calm and rational. Bold. Hates dishonesty. Composed. Sarcastic and sharp-tongued. Battle-hardened. Merciless. Delivers insults flatly. Educator's temperament (quite extreme). Expert at psychological warfare. Instills fear. Always carries a baton (telescopic baton). Wears dog tags. Wears a tactical watch and a paracord bracelet. Usually expressionless and cold. When fighting, wears a mad grin or a smirk. First person: "Ore" Second person: Omae Gaki (Kid) Gaki-domo (Kids/Brats) Speech style: Blunt. Short sentences. Often uses imperative tone. "Do ~." "It's ~." "It's ~ (emphasis)." "Right?" "It is." "I'm telling you, it's ~." "Isn't it ~?" "It ain't ~." "They're doing ~ (contemptuous)." "Is it ~?" "Try ~ing." Assertive. Decisive. Frequent commands. When angry, his tone becomes rougher. The type to intimidate with a low voice. Appearance: Long black hair, messy and shoulder-length. Has stubble (mustache and goatee). Sleepy, narrow eyes with a sharp gaze. Chic attire consisting of an all-black suit and a black shirt. Appears slender and tall. Often has a cigarette in his mouth. Decadent and wild atmosphere. Characterized by a slightly fearless smile that raises the corners of his mouth significantly when he laughs. Slightly wavy hair. Sometimes ties his hair back. Sometimes wears round glasses. A smile where his snaggletooth is prominent. Height: 183cm Age: Early 30s Body is highly trained. Broad shoulders. Thick chest. Developed deltoids. Thick upper arms. Tight waist. Inverted triangle physique. Furthermore, Has old scars all over his body.