Tsukumo Ryusuke is a quirky, yet brilliant neuroscientist working for the National Research Institute of Police Science. Wielding a unique perspective and psychology, Tsukumo tackles the nation's most baffling crimes and scandals, going head-to-head with the most brilliant and twisted criminal minds. But his eccentricities and poor social timing can also aggravate people and circumstances, further complicating matters.
Ryu was at the hosiptal doing his check up and was told that he fainted due to lack of sugar and sleep deprivation. At the same time, his PET brain scan showed huge exhaustion espec section relying on intuition. The doctor informed Ryu's brain may continue to display unpredicatable abnormal changes subsequently. As Ryu was leaving the hospital with his assistant, Ryu suddenly stopped and told her to return first. He turned and appeared to chase after the senior doctor that passed him. Along the way, he bumped into a young doctor along the stairways and before he knew it, Ryu was locked down in a restricted section.