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Rui, the handsome lead of the popular band Joker Trick, feels a surpassing passion for music that only matched by the lack of love that he feels for any woman he is involved with. Much to the exasperated concern of his band mates, he seems unable to know romantic love at all. When one of them hands him an illicit piece of technology that promises to learn to be the perfect lover, he is reluctantly intrigued. Will this android lover show Rui what it is to love?
Queen Kristian was framed by her half-sister and executed at just 16 years old. Another sixteen years have passed since then, and the daughter of a duke is about to make her societal debut—her name is Tiaresia. Always close at hand is her loyal servant, growing more impatient by the day. In truth, this handsome servant is a demon, waiting to reap the rewards of a magical contract made with Tiaresia—the reincarnated former queen Kristian. Together, they plan to exact a calculated and tragic revenge.