Ryuichi Kanzaki is a serious, career detective with a touch of humanism who is mortified when he is assigned a new partner in Kenji Kuroki, an ultra hard-nosed, rough-and-tumble cop. With their diametrically-opposed personalities and views on life, they form an odd pair battling crime in highly-satisfying police drama style. Kanzaki is seeking to follow in the path of his policeman father whom he greatly admires. Kuroki boasts the highest arrest rate on the force through his strong gut feelings and perceptive mind. But the two men share one secret that mustn’t get out: they are half-brothers. They may think and act very differently, but therein lies their biggest crime-fighting weapons.