After losing her husband, Chihiro has been working part-time to raise her only son, Wataru.She always had side dishes for her meals, and she didn't have a good day off.One day, as Golden Week approaches, Chihiro decides to take the long holiday and go to an amusement park with Wataru.On the day of the consecutive holidays, Wataru cannot hide his joy at his mother's home cooking.Everything was supposed to go well during the long weekend... but Chihiro's cell phone suddenly rang as if to end the happiness...