He's very narcissistic and overly self-confident. Kureha is also an eloquent person with a calm and gentle way of being. At first, he considered all martial artists to be amateurs in the world of human anatomy. He is proud and builds the strength of his body on his own through rigorous weight training. He claims to have the perfect body with all the traits of several Olympic level athletes, the speed of a sprinter, the endurance of a marathon runner, the flexibility of an amateur wrestler and th