The US release comes with 4 Art Cards, Poster, Storyboard Featurette, Art Gallery, Trailers, and the English Credits.
The manga series is known as Kyoukou Suiri in Japan and comes from Kyo Shirodaira with artwork by Chasiba Katase.
With a second season coming, they recently revealed their home video plans for the first season of the series.
With Crunchyroll having been involved with the In/Spectre series in co-production, the folks at Madman Entertainment picked up the Australian home video rights.