Special bundled with the Blu-ray/DVD volume of Grisaia no Meikyuu.

The year is 2071. Humanity has been pushed to the brink of extinction following the emergence of man-eating monsters called "Aragami" that boast an immunity to conventional weaponry. They ravaged the land, consuming almost everything in their path and leaving nothing in their wake. To combat them, an organization named Fenrir was formed as a last-ditch effort to save humanity through the use of "God Eaters"—special humans infused with Oracle cells, allowing them to wield the God Arc, the only known weapon capable of killing an Aragami. One such God Eater is Lenka Utsugi, a New-Type whose God Arc takes the form of both blade and gun. Now, as one of Fenrir's greatest weapons, Lenka must master his God Arc if he is to fulfill his desire of wiping out the Aragami once and for all. The monsters continue to be born en masse while the remnants of humanity struggle to survive the night. Only God Eaters stand between the Aragami and complete and total annihilation of the human race. [Written by MAL Rewrite]

Their mission is to locate and retrieve the mysterious Lost Technology, even though these girls have never been known to stick to their mission. Milfeulle, Forte, Ranpha, Mint, and Vanilla are back for another round of hilarity. The Galaxy Angels have sworn to protect the galaxy one planet at a time. Now with some competition with the newly-formed Twin Star Brigade, they continue to find themselves in the center of chaos... though usually they're the ones at fault for its cause. (Source: ANN)

Honda is a skeleton, but more importantly, he is a bookseller. And he'll tell you from firsthand experience that the job of a bookstore employee is more challenging than it may seem to the average customer. Alongside his equally eccentric coworkers, Honda constantly deals with the stressful requirements of the bookselling industry. From the drama of receiving new titles without their bonus material to the struggle of providing quality service to customers who speak a different language, the work of a skeleton bookseller never ends. Nevertheless, despite the hardships he faces, Honda thoroughly enjoys his job and strives to bring the best book selections and service to his customers. [Written by MAL Rewrite]