Many years ago, the northern kingdom of Vilard
was decimated by a scourge of monsters.
The monsters could not be stopped,
and their destruction reached as far south as Rounstia.
People took refuge in what they hoped was the strongest tower.
Warped by the oppressive stress and fear of death,
the tower's women became a sexual outlet for the men.
It was this world protagonist Shigezane was born into.
But she and her loli best friend Ibuki have made a pact.
Their quest begins to return peace to the world.
The two girls arrive in Strent, acquire armor and weapons
and thus fortified, search for survivors.
Here they meet Iris, another petite girl living in a basement.
More determined than ever, they forge an alliance of three...