Since discovering that Frost, the fearsome Dark Knight, is secretly a woman, Clarice has worked day and night to make Frost fall in love with her in order to save her sick sister. But the more time she spends around Frost, the more she sees how isolated Frost is by everyone's fear of her. One day, during an excursion to the domain's capital, Clarice encounters Violet Graat, vice-president of Graat & Co.-the most powerful trading company in the city-who wishes to win over Clarice's support and cast doubt upon the Dark Knight's true self. As they talk, Clarice is confronted with a burning question: what exactly are her true feelings for the Dark Knight?