An animated film series based on the Ao Oni game. It will feature a new story.

The Great Yan Empire exists in a world where respect can only be earned through strength. Within this Great Yan Empire, the four great clans have always stood above the rest. Among them, a particular incident in the Lin Clan resulted in the banishment of a certain individual who went on to start his own family, in hopes of one day being recognized again by the Lin Clan, and rejoining them… Hailing from a banished family of the Great Lin Clan, when Lin Dong was very young, he watched, powerless, as his talented father was easily crushed and crippled by the overwhelming genius of the great Lin Clan, Lin Langtian. With a despairing father, a heartbroken grandfather, and a suffering family, ever since that fateful day, Lin Dong has been driven by a deep purpose; to take revenge on the man who had taken everything and more from his family. Armed with nothing but willpower and determination, join Lin Dong as he unknowingly discovers a destiny greater than he could ever hope to imagine when he stumbles upon a mysterious stone talisman… (Source: Novel Updates)

A recap of the first season of Sidonia no Kishi with additional scenes and re-edited sound effects.

Shikizakura: where cherry blossoms are in full bloom while trees are colored with autumn leaves. In this special place, where the transient world meets the spirit world, a ritual to save humanity is about to begin... High school student Kakeru Miwa, by a strange turn of events, winds up being an irregular member of a power suit team tasked with battling Oni. These Oni possess humans and try to cling to the transient world. Only the power suit, Yoroi, which combines ancient secrets with the latest technology, can protect people from Oni. Kakeru decides to become a hero who will battle Oni and protect Ouka Myoujin, the shrine maiden fated with saving the world. Shikizakura season. Ouka dances as a shrine maiden in autumn leaves and cherry blossoms. Heroic action—where the past and the future, the transient world and the spirit world, thoughts and wishes, all intersect—begins here! (Source: MAL News)