On the sixth day of their 7 Days of Christmas promotion, Hanabee announced that they have licensed Humanity Has Declined. It will be released on DVD for a suggested retail price of $49.99 AUD on March 4, 2015. The release will come with two discs, feature Japanese audio with English subtitles and feature the textless opening and ending animation. It can be pre-ordered here.

Sentai Filmworks released the series on both DVD and Blu-ray in 2013. On-disc extras on their release include story digests and the Survival of the Fittest OVAs as well as the textless opening and ending animation. Hanabee’s announcement does not make it clear if they will be including the additional extras as well or if they will be releasing the series on Blu-ray at a later date. Sentai Filmworks describes the series as follows:

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. Because it’s not about how often you fall and fail, it’s about how often you get back up and try again, and the human race still has a lot left to accomplish in Jinrui wa Suitai Shimashita.