A year has passed since Michiko lost her husband, and she remains enveloped in deep sorrow. One day, while cleaning up after a memorial service, her brother-in-law whispers, "Sister-in-law, it's time to let go of my brother and start something with me..." Though he's been financially supporting her, his true intention is to remarry her. Using her son's tuition fees as an excuse, Michiko finds her heart swaying under the warmth of his touch and ultimately gives in to his advances. However, their encounter is accidentally witnessed by her son. A heartbreaking moment unfolds where family bonds and emotional fragility collide.