In the downtown area of Okinawa, Yukari (Saryu Usui), a woman who secretly lends money to women at night who can't borrow money from anywhere. Hunted for a crime she committed in Tokyo, she fled to the island of her lover Shun and demonstrated her courage and business acumen as the daughter of a techie, and became famous as a "woman of dark money" who lent money to women at night with mowgli, but it was a dangerous job to turn the local yakuza around. Yukari, whose love for Shun had cooled down during her life on the run, one day had a fateful encounter with Yoshitaka, the man who saved her from her predicament. However, he was one of the yakuza who pursued the "woman of the dark money", and there was also a danger of pursuing her from the mainland