By 2039, helper androids have become as common as general-purpose electronics. Keiichiro lost his family in a traffic accident and subsequently retired from his band. One day, he discovers an old-model android in a garbage dump. He brings her home, but after visiting a repair shop, he is informed that she cannot be fixed, leading him to plan her disposal. The following day, however, Keiichiro finds her preparing breakfast for him. Thus begin the summer days of an android with no memories and a boy who dreams of nothing.