Saki Hatsumi, playing the role of Natsumi Kazafu, is an apprentice witch who seeks to become a full-fledged witch in order to break the curse placed on her aunt, Majoru, who was turned into a doll because of her. To become a witch, Natsumi must overcome several trials, and she has chosen the task of collecting the "Unlucky Cards"—cursed cards imbued with wishes that bring misfortune. Once she gathers all the cards, she will finally achieve witchhood. Guided by her magical compact, Natsumi searches for the cards and ultimately arrives at an unexpected location—her own home. There, she encounters new mysteries and fateful meetings unlike anything she's faced before.