Sister Street Fighter: Hanging by a Thread (1974)
Koryu arrives in Yokohama in pursuit of Birei, a woman abducted by diamond traffickers who conceal their stolen gems by surgically implanting them into the bodies of Chinese sex workers. Complicating matters, Koryu's sister, a jewelry designer, is reluctantly entangled with the criminal underworld. As Koryu navigates the dangerous landscape of smuggling and betrayal, she must confront the grim realities of her sister's involvement while launching a fierce rescue mission against a backdrop of greed and corruption.
