Following the mysterious incident that struck his family, Jiji is convinced that his home is cursed. Momo and Okarun therefore go to the spa town where he lives to conduct their investigation. After inspection of the house, the young medium finds nothing abnormal at first sight but on their side, the boys discover a hidden room covered with amulet... They are then attacked by the Kitô clan, the guards of these places, determined to make the three high school students offerings at a ceremony!