In a world where marriage is devoid of love, a significant change occurs when a cold-hearted soldier's fierce passion comes to light.
Asako, a daughter of a viscount family, is considered a social outcast and a burden to her parents. Her only cherished possession is her younger sister. One day, a proposal comes up for Asako's younger sister to marry the rumored cold and rough soldier, Kido. To prevent this marriage, Asako offers to marry Kido herself as a substitute.
Thus begins the radiant Taisho-era love story of a cold-blooded soldier and a lonely young lady. Through their marriage, Asako and Kido's journey reveals the true nature of love and affection that defies their initial perceptions and societal expectations.