Hisayo accepted his passionate proposal and became a full-time housewife. Although her husband is kind, he is often away on business, and they live apart, which is a source of worry for her. On top of that, her older brother Shuichi stubbornly rejects Hisayo and picks a fight at every opportunity. The only thing that gives Hisayo Kokoro now is that her younger brother Kazuhiko has accepted her. However, one night, when she returns to her room after a bath, she finds Kazuhiko looking through her underwear. His unexpected behavior troubles Hisayo, but that is not all...