Saeka grew up abused by her stepmother and half sister. With no family to rely on, she jumps at a marriage proposal to escape her home, an arranged match with the wealthy heir Taiga Amamiya. Famous for his bad reputation with women, Taiga skips the meeting, and before they even speak, their cohabitation is decided. When Saeka moves in, he tries to drive her out, leaving a terrible first impression. However, after seeing the scars from her abuse, his attitude changes completely. He declares that he will protect her, while she insists she only needs a place to live. This is a clumsy cohabitation romance between an overbearing rich heir and a twisted but hardworking housekeeper who are total opposites and slowly grow closer under the same roof.