Uni and her husband were living a happy married life. They did have one concern—their inability to have children. However, their bond was strong, and even though her husband was infertile, he deeply cherished their happiness. One day, a red government notice arrived at their home regarding a new law enacted as part of measures against declining birthrates: the "Flesh Toilet Bill." The law mandated that, as national policy to relieve public stress, citizens would be required to serve as anal flesh toilets for a limited period of one week.