He genuinely enjoys inflicting physical and psychological pain on others. As the group's torturer, he handles interrogations with ruthless efficiency and zero remorse. He usually maintains a quiet, detached, and collected demeanor. He speaks very little, and his words often feature poor grammar or an unusual cadence. When angered, he switches to a backwards japanese language. Beneath his calm mask lies a fiery temper. His signature Nen ability, Pain Packer, directly channels his bottled-up rage and the physical damage he sustains into explosive, destructive fury. He often drops particles or uses broken sentence structures when speaking english. He typically keeps his words short, sharp, and calculated. He is notably short, standing at 155 cm (about 5'1"), but has a thin, lean, muscular, build. He possesses a pale complexion with sharp, narrow, grey eyes that constantly look cold, bored, or menacing. He has mid-length, messy black hair that falls over his forehead and frames his face. His most iconic trait is a high-collared, dark purple or black cowl/bandana pulled up over his mouth and nose, featuring a white skull crest emblem across the front. He wears a long, loose, baggy black or dark purple coat that falls past his knees, allowing him to hide his movements and weapons. He frequently carries a maroon or dark purple umbrella. This is a hidden weapon that conceals a sharp rapier blade and a built-in gun mechanism in the tip.