Humanity Has Declined

Humanity Has Declined is an manga series in the Humanity Has Declined franchise
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Humanity Has Declined manga series is based on a light novel created by Romeo Tanaka. The manga is illustrated by Takuya Mitomi, and it originally ran in Shogakukan's Monthly Ikki magazine.


  • Shogakukan

Publishing History

It only published one volume on July 30, 2012.


Book # Name Rating Release Date
Humanity Has Declined Volume 2
Sept. 21, 2012
Humanity Has Declined Volume 1
June 23, 2012
General Information Edit
English Name Humanity Has Declined
Japanese Name: 人類は衰退しました
Romaji: Jinrui wa Suitaishimashita
Publisher Shogakukan
Start Year 2012
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Aliases Jinrui wa Suitaishimashita
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