As a servant to the eccentric head of the Ushiromiya family, Kinzou, Shannon is only regarded as a lowly worker on Rokkenjima island. Though, as she harbors a passionate love for George, her master's grandson, Shannon realizes that their forbidden relationship can never come to fruition. Despite her efforts to suppress her affection for him, Shannon's feelings continue to grow stronger each day. One fateful night, the Millennial Witch of Rokkenjima, Beatrice, offers to use her magic to help Shannon and George unite. In exchange, Shannon must destroy a ritual mirror nearby that's suppressing Beatrice's powers. Shannon agrees, and to her surprise, her relationship with George blossoms.
Meanwhile, Kanon, another servant, is skeptical of Beatrice's offer to help Shannon. As "furniture," Kanon believes that they are not on the same level as humans and shouldn't experience emotions such as love. Nevertheless, he discovers that Jessica, Kinzou's granddaughter, has feelings for him. As a result, Kanon starts contemplating his own emotions towards her. However, their love is put to the test when Kinzou's family and their annual conference convene on the island, and Beatrice initiates a contest to find Kinzou's hidden gold. Everyone is vying for the coveted title of family head, but what was once a peculiar game soon transforms into a nightmare, and not everyone may survive. Can Shannon and Kanon protect their loved ones?