Synopsis of "Tale of the Nine-Tailed" Series
It follows the story of Lee Yeon, an over 1000-year-old Gumiho and the former guardian mountain spirit of Baekdu-daegan, who is now a city dweller. He works with Taluipa, an agent in the Afterlife Immigration Office and the protector of the Samdo River, to eradicate supernatural beings that threaten the mortal world. He lives in the city where he is assisted by his loyal subject, veterinarian, and fellow Gumiho, Goo Shin-joo.