Jinrui wa Suitai Shimashita: Yousei, Shimasu ka?

人類は衰退しました ようせい、しますか？

It has been centuries since a sharp decline in birth rates caused a massive drop in the human population, and the most successful species on Earth are now the Fairies—intelligent creatures that stand a mere ten centimeters tall. As a UN mediator whose job is to help humans and fairies understand each other, I came back to my hometown to help out my grandfather. I thought the task would be simple, so I went to a fairy settlement to introduce myself, but...

Adapted to anime

Humanity Has Declined

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