Before she started living under the bridge, she was the wife of a yakuza boss.
A barkeeper saves a yakuza boss' life and thus makes his way up in the organization.
He accidentally drops his knife, allowing the Yakuza boss to close with him.
After finding out the truth about the yakuza boss, she takes revenge on that boss.
The Yakuza boss seizes the chance and puts the P38 to his head.
As the daughter of a Yakuza boss, she has mastered some martial arts and is a very capable fighter.
The situation is further complicated by the fact that Kai is the son of a yakuza boss.
A Yakuza boss who fought against Kunio in the past.
As he enters, the Yakuza boss jumps out and tries to shoot him with his P38.
She was first hired by the yakuza boss in order avenge his earlier defeat at Mamoru's hands.