Included with the premium collection release of the PS4 remake of Utawarerumono: Chiriyukumono e no Komoriuta. The anime will tell the story of Kuon's childhood days. (Source: ANN)

Driven to the verge of extinction by "Aragami," a race of all-devouring monsters, humanity makes its last stand in isolated points of resistance. Invulnerable to conventional damage, only "Oracle Cell" weapons—composed of the same matter which makes up Aragami—can kill these creatures. However, due to their god-like ability to adapt, the Aragami soon develop further immunity. Having no other hope of fending off the enemy, the remnants of human governments decide to detonate a nuclear reactor and wipe out the monsters facing Eurasia. The soldiers tasked with this mission are aided by three "God Eaters" dispatched from the Fenrir Far East Branch, an organization controlling what remains of Japan. The state-of-the-art weapons they wield, called God Arcs, are supposedly capable of piercing through Aragami skin and tearing their cores out, pulverizing the monsters. These mighty warriors may just be humanity's last hope of fending off the Aragami threat and averting total extinction. [Written by MAL Rewrite]

Hatsuki is a highschool student living with her sister, Hatsumi, who she has a huge crush on. On Hatsumi's 16th birthday, she is suddenly surrounded by a green light and disappears in front of Hatsuki. She manages to follow Hatsumi with the help of a being resembling a fat baby chick (literally), ending up in a place called "The Great Library", which is full of different worlds stored in books. Hatsumi wasn't there, though, so the search for Hatsuki's great love begins and involves traveling from book to book. (Source: AniDB)

After defeating the various Floor Masters of the six prior levels, Hakuno Kishinami and Saber arrive at the top floor of the Moon Cell. Their opponent will be Leonardo B. Harwey—the strongest Master in the history of the Holy Grail War and the current fan favorite, following his previous victory. As they reach a field of flowers among floating isles, Hakuno, Saber, and Rin Toosaka come across a hooded man tending to the blossoms. Saber immediately draws her blade before the cloaked figure, who reveals himself as Prince Gawain: the Platinum Saber and Knight of the Round Table. However, when Gawain insists that he has no interest in fighting, the four discuss the infinite possibilities for the Holy Grail, with Hakuno determined to return the Moon Cell to its original form. Their discussion ends with a clangor from afar, ringing through the skies. The threadbare Gawain, knowing its significance, informs the three that not much time remains for their lives. He beckons them towards the final battleground, where the two Sabers shall duel once more to determine the future of mankind. [Written by MAL Rewrite]