Yurie, a widow who lost her husband four years ago, runs a sandwich shop with the help of her late husband's younger brother, Kosuke. For Yurie, who is full of libido, having not been associated with a man for four years after her husband's death was close to the limit of patience. A delusion with Kosuke who gradually swells. At Kosuke's house, which he visited with sickness, Yurie explodes the desires he has accumulated for four years.