Humanity Has Declined

Humanity Has Declined is an anime series in the Humanity Has Declined franchise
The content below is entirely editable.

A United Nations mediator is investigating both the human race and the fairy race after noticing that the fairies (the race that took over humanity) have no trouble with their resources.


Humanity Has Declined is an anime series that revolves around fairies, created by Romeo Tanaka with character design by Sunaho Tobe and Toru Yamasaki. The anime series is produced by AIC A.S.T.A. and directed by Seiji Kishi.


For audiences outside of Japan, Crunchyroll is legally streaming the anime series for the following territories: America (North, Central and South), UK, Ireland, Australia, New Zealand, South Africa, Denmark, Finland, Netherlands and Sweden. Its simulcasts air every Sunday starting on July 1, 2012.


In Camphorwood Village, the Mediator comes to her home village, and she works with the UN. She helps her village to overcome their obstacle, famine. It turns out that humanity is losing their source of food while Fairies are not having trouble. Strange things occur when food and skinned chicken mysteriously appear in the village. They bear the FairyCo brand, so the Mediator, her assistant, and Grandpa (Village Leader) head out to investigate FairyCo.


  • Mediator [Sweet Girl] (Voiced by Mai Nakahara) - She is a nameless girl who is the UN arbitrator and the main character.
  • Grandpa (Voiced By Unshou Ishizuka) -
  • Mediator's Assistant
  • Nakata - he's a fairy
  • Receptionist

Theme Songs


"Real World" by nano.RIPE


"Yume no Naka no Watashi no Yume (ユメのなかノわたしのユメ;My Dreams Inside of My Dreams)" by Masumi Itou

Series Credits
Person Name Episode Count
Romeo Tanaka
Seiji Kishi

To edit the cast, go to an episode page.

Original US Poster Art

General Information Edit
Name Humanity Has Declined
Name: 人類は衰退しました
Romaji: Jinrui wa Suitai Shimashita
Publisher AIC
Start Year 2012
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Aliases Jinrui wa Suitai Shimashita
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