Encounter: The Enemy You and I Met Was...
After their brief but fateful encounter, Iska and Alice made an impression on each other, resulting in some sleepless nights. Despite being on the opposing sides of the war, they soon learn that they have much more in common than they thought.
Aired 14/10/2020EP 2 - Encounter: The Enemy You and I Met Was...

2020
Our Last Crusade or the Rise of a New World
Embroiled in a hundred-year war, young Iska is sent to assassinate the Ice Calamity Witch, Aliceliese. Meant to murder each other, their initial encounter on the battleground creates doubt in their missions, but finding common ground together would make them traitors to their own countries. Though circumstances previously made them enemies, their now conflicted hearts may just make them lovers!
(Source: Funimation)