Taiki is a powerful aristocratic creature from the demon realm, known for countless ruthless acts. He swore within himself to avoid having a shared fate with humans which he considers as inferior beings.

Hae Yeo-na is a Chaebol heiress brought up in a conservative family. She is seemingly unaware of the spiritual energy that dwells within her and the shared fate she might have with a being that takes uttermost delight in bringing utter terror to others.

The presence of the human proves to be a great disturbance to the fox god, who then takes it upon himself to force his way into the human world, to once and for all put an end to their shared history.