Living a wealthy and comfortable life thanks to her husband Yuusaku Shiraishi's success as a department manager, Sayuri quietly harbored minor frustrations over his constant busyness, though she otherwise enjoyed their affluent lifestyle. One day, Yuusaku invited his subordinate Kitagawa to their home as part of a hospitality gesture, engaging in friendly conversation. Kitagawa deeply respected his superior Yuusaku, while Sayuri graciously served a home-cooked meal, creating a warm and pleasant atmosphere. However, Kitagawa's mind began to stir with long-buried memories—memories that gradually revealed a hidden past secretly connected to Sayuri herself...