Chie lives an ordinary life as a housewife in a housing complex, with her husband away on a business trip and the house all to herself. Bored with her monotonous routine, she secretly longs for some kind of change. One day, two young garbage collectors visit her doorstep after she forgets to sort her trash properly, scolding her for not following the rules. The decision Chie makes in that moment becomes the catalyst that pushes her beyond the boundaries of her mundane life, leading her into a thrilling new world.