Prism Ark

The Sablum Empire has long sought to conquer the kingdom of Windland, and its latest plan involves partnering with mercenaries Sister Hell and Darkness Knight to launch a new assault using powerful magical beings known as Angels. To counter this threat, the kingdom has enrolled Hyaweh, a skilled yet laid-back swordsman, and Priecia, a young woman possibly related to the royal family, in the Knight's Academy to develop their fighting skills. At the academy, they meet a group of individuals who share their desire to defend Windland against the impending invasion.