While driving to go shopping, Mami's car was hit by a truck that ran a red light. Fortunately, Mami herself was unharmed, but her neighbor who was riding with her ended up bedridden, leaving the household in need of help with daily chores. Mami begins assisting by doing cleaning and laundry, striving to support the family and prevent disruption to their lives. Through this process, her own life gradually begins to change.