DVD/BD Extras.
Other name: Humanity Has Declined Specials, Jintai Specials, 人類は衰退しました
Genres: Comedy, Fantasy, Seinen, Special
Date aired: Sep 19, 2012 to Feb 20, 2013
Total episode: 6 eps
Status: Completed
Views: 92,021
Jinrui wa Suitai Shimashita Specials Comments