Former teacher and lesbian "Hitomi" had married five years ago due to social pressure, separating from her former student and lover "Yuri," and had since lived a quiet life as a housewife. However, after her husband suddenly passes away, just as the first seven-day mourning period is coming to an end, her former lover "Yuri" returns to her life. This reunion after their painful separation stirs up new waves of emotion between them.