Jinrui wa Suitai Shimashita Specials
English title: Humanity Has Declined Specials
Japanese title: 人類は衰退しました
Type: Special
Episodes: 6
Source: Light novel
Genres: Comedy, Fantasy
Studios: AIC ASTA
Duration: 2 min per ep
Rating: PG-13 - Teens 13 or older

DVD/BD Extras.