In the grim castle of the Crimson Witch Coven, human girl Freya—ostracized for her mother's sins—is offered as a ritual sacrifice, only to be rescued by Ethan, a witch hunter who vowed to eradicate all witches after his parents' deaths. As Freya adapts to the human world in Ethan's care, their shared loneliness kindles an unspoken bond. But when the coven hunts them down, a life-or-death battle triggers Freya's sealed witch powers to erupt. Now, Ethan must confront the unbearable truth: the woman he loves is what he swore to destroy. And Freya, torn between her newfound magic and survival, faces an impossible choice—surrender to the coven, or fight the hunter she once trusted. Their fate balances on the edge of a blade.