The group led by Teruko was the most famous in the port city of Yokohama. One day, however, a group claiming the same name as Teruko and her group appeared and began extorting them. The group was led by Rosa, who had come from Hayama. Teruko and the others were taken in by Detective Jitsusei on suspicion of extortion, and were even doused with oil. What saved the day was a witness, a runaway daughter named Toshie. Toshie is a half-sister.