Kisa, always dedicated to her family's business, finds herself exhausted with no time for herself or romance. Unexpectedly, Amane, a young president of an old noble family, proposes to her during a business visit. Bewildered, Kisa asks why he chose her, to which Amane responds vaguely with "just based on my intuition." Despite her uncertainty, Kisa is charmed by his honesty and the two begin living together with plans for marriage. However, Amane's cool facade and sweet approaches create a stormy dynamic in their relationship.