At a plastic factory in the country, Ritsuko, an experienced worker, helps a new part-timer named Chinatsu, who is also pregnant. This stirs up painful memories for Ritsuko, who had a miscarriage when she was in a car accident several years ago.

One day, his girlfriend Saki, who is in coma by a car accident, appears in front of Haruyuki. Saki says she was given a week and makes a box lunch for Haruyuki as she used to always do. Since then, every single day becomes special for him.