• Book Name: Jinrui wa Suitai Shimashita - Yousei, Shimasu ka Manga
• Alternative(s): Humanity Has Declined;人類は衰退しました ようせい、しますか？
• Genre(s): Comedy Fantasy Supernatural
• Author(s): Tanaka Romeo
• Status: Completed Download Manga
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Summary: 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...