Eun Sun-myung, a hunter and exorcist cursed with two different hexes on his body, takes on a job to eliminate a fox spirit named Shim Yi-yul.

However, instead of killing him, the two form an uneasy alliance — and end up living together.

Though they initially can’t stand each other and stay on guard, they somehow manage to coexist peacefully… until one night, during Yi-yul’s heat, instinct takes over.

After that night, their relationship becomes… something very different.