Jinrui wa Suitai Shimashita: Nonbirishita Houkoku

Also known as: 人類は衰退しました のんびりした報告, Jinrui wa Suitaishimashita, Humanity Has Declined, Jinrui wa Suitaishimashita : Nonbirishita Hōkoku

by Takuya Mitomi, Romeo Tanaka

It's been several centuries since human beings declined due to the steep drop in birthrates. The most prosperous species on the Earth are "Fairies", 10 cm tall creatures with high intelligence. I became a UN arbitrator between the humans and the fairies and returned to my hometown to help my grandfather. I thought my job would not be a tough one and visited one of the fairies' habitats to say hello to them but...