The premiere date is yet to be revealed
During the event of Fantasia Bunko Kanshasai 2019 it has been revealed that an anime adaptation of the light novels Our Last Crusade or the Rise of a New World is getting an anime adaptation.
The staff, cast and premiere date are still unknown.
Yen Press describes the story as follows:
“A great war has raged for years between the scientifically advanced Empire and Nebulis, the realm of magical girls—until the youngest knight ever to receive the title of the Empire’s strongest meets the princess of the rival nation. Though they are sworn enemies, the knight is taken by her beauty and dignity, and the princess is moved by his strength and way of life. Will the fighting between them ever be allowed to end?”
Via: Anime News Network