GuWolRyung, the guardian spirit (Gumiho) of Jiri Mountain falls in love with Yoon SeoHwa, a gisaeng. At first, SeoHwa is clueless about WolRyung’s real identity. Upon her discovery that her husband’s not human, she betrayed him causing his death. SeoHwa gave birth to Choi Kang Chi and the baby was abandoned by the river. Kang Chi, grew up not knowing that he is a half human-half monster.
Dam Yeo Wool (Bae Suzy) is a master of martial arts and archery. She is an instructor at a martial arts center.
Kang Chi will meet Yeo Wool and the two will fall in love. However, a monk will warn them that they will endanger each other’s life. Will Kang Chi repeat his father’s tragic story?