Yumi Yoshizawa

Ken's love interest, a girl that left Japan to become a cop in the department in charge of organized crime. Her true name is Yumi and she is actually Japanese.

She hates gangsters, later it is discovered that she is the daughter of a Japanese Yakuza Boss that killed Ken's parents. Her hatred of gangs is due to her mother and sister being killed by other Yakuza when she was young. As the daughter of a Yakuza boss, she has mastered some martial arts and is a very capable fighter. She also has feelings for Ken while not knowing he is an underworld boss. Later she was kidnapped by Kim Ban-Phuong's gang who hold her as their hostage. She is shocked when she finds that Ken is the boss.