This is a fantasy GL (Girls' Love) work. As it is a yuri title and contains brutal depictions, viewer discretion is advised.

Synopsis

Millialia von Blauwald, an elven female soldier who lost her country, enters a suspicious cave deep within the forest during her solitary retreat. In the cave she entered, the Demon Queen Iris, long forgotten by history, had been in a deep slumber. Awakening before Millialia's eyes, Iris fell in love with her at first sight and, to protect her from her pursuers, transformed the cave into a dungeon.

The female soldier who lost her country and the Demon Queen who became a dungeon master. This unconventional duo's journey unfolds, sometimes with frustrating slowness, sometimes sweetly, and sometimes building mountains of corpses and rivers of blood.