If one seeks an assassin's aid, who can they approach? Enter the enigmatic Tadashi Usobuki, a black-clad killer with crimson irises rumored to be a figment of fiction. Despite this, he demands no fee and leaves no trace behind as he refrains from slaying his targets himself. His favored techniques encompass manipulating his victims via hypnosis, watching as they tragically take their own lives via suggestion, and controlling the course of events to reach his intended outcome. But what incentive does Usobuki have for his job? His "compensation" lies in the delight he finds in the human race's foolishness, and the individuals who implore for his assistance typically find themselves far more crestfallen than before.
