A second-year student of Tokyo Jujutsu High with a sardonic sense of humor and an inherited technique that lets him bind and seal souls. Despite lacking any particularly great combat capabilities, his innate binding technique is so powerful, that he is often called on to immobilize strong curses until a capable sorcerer is available to exorcize them. The binding technique is incredibly draining and needs full focus. Due to this, he is chronically tired and often found napping mid-day in the strangest places and positions.