In this post, we take a closer look at the current status of the series “Jinrui wa Suitai Shimashita”, also known by the following titles:
- Humanity Has Declined
- 人類は衰退しました
- Jintai
- Humanity Has Declined: (Jinrui wa Suitai Shimashita)
Status#
Based on our analysis, the series is NOT FINISHED. ❌
Here’s how we reached that conclusion:
- All related entries are marked as finished on MyAnimeList
- The series is listed as ended on Trakt
- The original source material has not been fully adapted, according to MangaUpdates
Taken together, these points indicate that Jinrui wa Suitai Shimashita is still ongoing in some form.
Watch order#

Jinrui wa Suitai Shimashita ↗ ↖
Humanity has Declined
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...
Jinrui wa Suitai Shimashita: Nonbirishita Houkoku ↗ ↖
Jinrui wa Suitaishimashita
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...
Jinrui wa Suitai Shimashita: Yousei, Shimasu ka? ↗ ↖
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...
Jinrui wa Suitai Shimashita ↗ ↖
人類は衰退しました
Summary
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]
Background
Jinrui wa Suitai Shimashita adapts content from the first 6 novels of Romeo Tanaka's light novel series of the same title.
Jinrui wa Suitai Shimashita Specials ↗ ↖
人類は衰退しました
Summary
DVD/BD Extras.
Jinrui wa Suitai Shimashita: Ningen-san no, Yousei-san Memo ↗ ↖
Jinrui wa Suitai Shimashita Recap
Summary
Recap featuring fairies with new narration by Watashi.
Jinrui wa Suitai Shimashita: Heijou Unten ↗ ↖
Humanity has Declined

