The leader gumiho, who has lived for more than 1,000 years, is captivated by a human woman, Gu-ho, who met Jeong-yeon, who has been reborn in the present. The 500-year-old Mi-ho, who is good at transforming herself into a different creature, advises Gu-ho not to love people after experiencing heartbreaking love in the Joseon Dynasty.