Watashi
main character
TV
7.5
My TrackerPLANNING
Episode: 0 / 12
My Score:
Anime DetailsFINISHED
Estimated watch time
4h 36m
⚡ 3 days at 5 eps/day
Tags & Tropes
Satire95%Fairy94%Post-Apocalyptic91%Surreal Comedy88%Achronological Order85%Female Protagonist85%Time Skip79%Episodic78%Lost Civilization77%Food56%
TVFINISHED2012 SUMMER7.5 / 10 AniList score
Humanity Has Declined
人類は衰退しました• Jinrui wa Suitai Shimashita
Synopsis & Story
For years, declining birth rates have forced what's left of the human race to cede more and more territory to other beings who have appeared to take advantage of the emptying ecological niche. Now, only a handful of humans remain among the remnants of civilization and Earth is dominated by faeries —tiny, ten-inch tall creatures of surprising intelligence. But humanity's importance isn't over quite yet, as young Watashi learns as she makes the decision to return to her hometown and assume her grandfather's position as an arbitrator between the races. Unfortunately, the job isn't going to be anywhere near as simple as she expected, and it's going to take a wisdom far beyond her years to achieve her most important mission. (Source: Sentai Filmworks)
Trailer
Watch on YouTubeWhere to Watch Officially
Availability, audio and subtitles vary by region and service.
Featured Cast & Voice Actors
Franchise Universe & Related Entries
Fans Who Watched This Also Loved
Aniphoria guide
Humanity Has Declined: should you watch it?
At a glance
Humanity Has Declined has been well received, with an average AniList score of 75/100 — 60% of 16,746 ratings are 8/10 or higher.
It ranks #27 highest-rated anime of 2012, and #50 most popular anime of 2012, and #2 highest-rated anime of Summer 2012 on AniList.
Of the 28K AniList users who started it, 7.8% dropped it, so it is dropped at a typical rate; 20.9K have finished it.
At about 4 h 36 min in total, it is a short commitment — a weekend binge.
Best for viewers who enjoy Comedy, Fantasy, Sci-Fi — especially satire, fairy, post-apocalyptic, surreal comedy.
Where it fits in the series
- Optional extras: Humanity Has Declined Specials
Episodes
12 episodes are listed.
Main cast & creators
- Original creator
- Romeo Tanaka
- Director
- Seiji Kishi
- Series composition
- Makoto Uezu
- Character design
- Kyuuta Sakai
- Music
- Kou Ootani
Opening & ending themes
Openings
- OP1“Real World” by nano.RIPE · eps 1-11
Endings
- ED1“Yume no Naka no Watashi no Yume” by Masumi Itou
Theme data from AnimeThemes.moe.
Humanity Has Declined FAQ
- How many episodes does Humanity Has Declined have?
- Humanity Has Declined has 12 episodes of about 23 minutes each, roughly 4 h 36 min in total.
- How long does it take to watch Humanity Has Declined?
- About 4 h 36 min back to back. At two episodes a day it takes 6 days; at one hour a day, about 5 days.
- Is Humanity Has Declined finished?
- Yes. Humanity Has Declined has finished airing — the final episode aired September 16, 2012.
- Is there a season 2 of Humanity Has Declined?
- No sequel is listed for Humanity Has Declined as of October 2026. You can continue the story in the original light novel.
- Is Humanity Has Declined based on a light novel?
- Yes. Humanity Has Declined adapts the light novel by Romeo Tanaka.
- Who animated Humanity Has Declined?
- Humanity Has Declined was animated by AIC A.S.T.A. and directed by Seiji Kishi.
- Who sings the opening of Humanity Has Declined?
- The opening, "Real World", is performed by nano.RIPE.
- Where can I watch Humanity Has Declined?
- Humanity Has Declined is listed on HIDIVE. Availability varies by region — check the streaming links on this page.