After her husband quit his office job to pursue his dream of starting a dairy farm, Rumi stayed behind in Tokyo, living alone and eagerly awaiting the day he would return. But that hope was short-lived. One day, she received devastating news—her husband had suddenly passed away. Overcome with shock, Rumi was soon visited by her husband's coworkers, middle-aged dairy farm workers. They revealed that the farm now faced a crisis: the cows had contracted a contagious disease, putting the entire operation on the brink of closure. Desperate and at a loss, the farm's manager turned his attention to Rumi—her body, and her breast milk.