Jinrui wa Suitai Shimashita

Humanity Has Declined

What would you like to edit?

Alternative Titles

Synonyms: Jintai
Japanese: 人類は衰退しました
English: Humanity Has Declined
German: Humanity Has Declined
Spanish: Humanity Has Declined: (Jinrui wa Suitai Shimashita)
French: Humanity Has Declined
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jul 2, 2012 to Sep 17, 2012
Premiered: Summer 2012
Broadcast: Unknown
Licensors: Sentai Filmworks
Studios: AIC ASTA
Source: Light novel
Genres: AdventureAdventure, ComedyComedy, FantasyFantasy
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.721 (scored by 6136561,365 users)
1 indicates a weighted score.
Ranked: #11622
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1243
Members: 189,583
Favorites: 1,945

Available At


Streaming Platforms

Ranked #1162Popularity #1243Members 189,583
Add to My List
Episodes: /12


Because of the constantly declining birth rates over many decades, human civilization is all but extinct. With only a few humans remaining, they survive in this post-apocalyptic world with what was left behind by the previous generations. Earth is now dominated by fairies, tiny creatures with extremely advanced technology, an obsession with candy, and a complete disregard for human safety.

A young girl who has just finished her studies returns to her hometown and is designated as an official United Nations arbitrator. Her duty is to serve as a link between mankind and fairies, reassuring each side that both races can live together peacefully. She imagines this task will be easy enough, but controlling the disasters created by the oblivious fairies in their pursuit of candy will require a lot more effort than she initially believes.

[Written by MAL Rewrite]


Jinrui wa Suitai Shimashita adapts content from the first 6 novels of Romeo Tanaka's light novel series of the same title.

Related Anime

Characters & Voice Actors


Nakahara, Mai


Aoki, Sayaka


Mamiya, Kurumi


Sawashiro, Miyuki


Fukuyama, Jun


Mizuki, Nana


Hiyama, Nobuyuki


Nogawa, Sakura


Kanemoto, Hisako


Kuwatani, Natsuko



Opening Theme

Apple Music
Amazon Music
Youtube Music
"Real World (リアルワールド)" by nano.RIPE (eps 1-11)

Ending Theme

"Yume no Naka no Watashi no Yume (ユメのなかノわたしのユメ)" by Masumi Ito


Jun 13, 2022
Yo back with me who will review this anime.
first of all why am i giving it a 10 over all? just think about it after i write this.

- This story is really weird but amazing, what's weird about it? The first weird thing about the story or the plot, I think the episode is reversed or this is on purpose but after looking back this is true, both stories are weird in many other mystery story references, this is amazingly weird (did not mean to insult or demean other stories), what I mean first is the fairy, here the fairy exists like the author or ...
Feb 6, 2023
Mixed Feelings
A long time ago, when my age didn’t start with “3”... hell it barely started with “1” I had a high fever, about 44 degrees celsius to be exact. I don’t remember much from those 3 days, but I do remember having a really trippy, surreal dream, the kind Hughes Mearns or Salvador Dali would be proud of. In it I saw creatures similar to gnomes and elves that talked to me, some wanted to cut me to little pieces, some wanted to cure me and some just watched with amusement at my suffering. For some reason I want’s scared but more curious about them.
Later ...
May 14, 2021
In all honesty, this has been one of the weirdest anime(s) I have watched to date and one of the most confusing that I’ve written a review for. I just don’t know exactly what to say about it. For starters, I guess I’ll point out that the humor in this show is absolutely crazy; you will see some of the weirdest stuff in this anime that you’ve never seen anywhere else. The biggest problem I found with that, however, is that it seems to be the key element of this anime and the only enjoyable part of it. Basically, if you don’t enjoy the sense ...

Interest Stacks


Recent News

North American Anime & Manga Releases for October

North American Anime & Manga Releases for October

Here are the North American anime, manga, and light novel releases for October. Week 1: October 4 - 10 Anime Releases Fate/kaleid liner Prisma☆Illya Movie: Licht - N...read more

Q4 2015 Anime & Manga Licenses [Update 12/19]

Q4 2015 Anime & Manga Licenses [Update 12/19]

In this thread, you'll find a comprehensive list of anime and manga licensed in the fourth quarter (Oct-Dec) of 2015. Fall anime which were licensed before the ...read more

Recent Forum Discussion

Poll: Jinrui wa Suitai Shimashita Episode 4 Discussion ( 1 2 3 )
prismheart - Jul 22, 2012
124 repliesby Safrichh »»
Yesterday, 7:54 PM
Poll: Jinrui wa Suitai Shimashita Episode 9 Discussion ( 1 2 3 )
tsubasalover - Aug 26, 2012
118 repliesby kirA_-_ »»
Mar 1, 5:29 PM
Poll: Jinrui wa Suitai Shimashita Episode 8 Discussion ( 1 2 3 )
tsubasalover - Aug 19, 2012
144 repliesby kirA_-_ »»
Mar 1, 4:54 PM
Poll: Jinrui wa Suitai Shimashita Episode 7 Discussion ( 1 2 3 )
prismheart - Aug 12, 2012
132 repliesby kirA_-_ »»
Mar 1, 4:04 PM
Poll: Jinrui wa Suitai Shimashita Episode 6 Discussion ( 1 2 3 )
prismheart - Aug 5, 2012
126 repliesby kirA_-_ »»
Feb 29, 3:28 PM

Recent Featured Articles

In Numbers: The Best Anime of the Decade

In Numbers: The Best Anime of the Decade

What's the #1 anime of the 2010s? Which year was the best? What studio had the most hits? We have the answers to all these questions and more!

by Shymander


Top 10 Anime Fairies

Top 10 Anime Fairies

Hey! Listen! Legends of the fair folk go back hundreds of years and continue today with all sorts of depictions. Some fairies will help you while others are wicked creatures and you can see both kinds here!

by NicWat10