On her 30th birthday, Mihye, a virgin burning with lust, finds herself alone with only wine, cake, and the life-sized pillow of her favorite idol singer by her side. Determined to indulge in her fantasies, she blows out the candles with just one wish for the coming year—to finally experience intimacy. To her surprise, when she opened her eyes, a charming stranger appeared before her, offering her a tempting offer: become a witch and take her soul. With this unexpected turn of events, one thing is certain - this witch's journey will be far from the ordinary, as she finds herself riding more than just a broom.