Deputy Director Satomi Shinozaki of the Administrative Affairs Department is entrusted with drafting a proposal on women's independence and improving employment conditions in recognition of her outstanding performance. Moving into a quiet, upscale official residence, she begins living alone, fully immersed in her writing. One night, she is startled by a sudden noise. Though she believes she is alone, strange sounds emanate from the living room. Hesitantly going to investigate, she discovers a man and a woman she has never seen before. This encounter will become a life-changing event for Satomi.