Tojoro is a clever and savage boss of Kurokawa Yakuza clan. Ryoko, Tojiro’s daughter has a furious temper and a sharp mind. They love their family. Tojoro feels a strong sense of responsibility with pride to his role as a boss. They intentionally get infected by the Alpha worms to obtain more power and they lose a shape of human as a result.
She is the smaller of the two with snake arms. Ken Ogawa has to fight both of them as bosses in the game. Her father is Oyabun Tojiro Kurokawa.