The legendary gumiho or nine-tailed fox, Goo San Duk, leaves her husband after his betrayal renders her unable to shapeshift. She takes her nine-year-old daughter, Yeon Yi, who has yet to gain the ability to use her gumiho powers, to a village in order to protect her. As Yeon Yi turns ten, her physical transformation begins, putting her in increasing danger of being discovered by her neighbors. Watch drama online for free.