Once, under the name of the Mad Emperor Galberos, the Holy Galberia Empire was the most powerful and feared military nation, setting the continent ablaze with war.
Now, to counter the growing threat of the cunning Xenobite Cult, Queen Cecily of El Arad travels to this enemy nation to form an alliance. But what she finds there is a horde of grotesque, undead monsters and the Galberian Dragon Knights fighting to protect their homeland.
At the forefront stands Hildegard, the “Dragon Princess” who now rules the Galberian Empire—and the newest Eden’s Ritter.
Hildegard, who sacrificed her own father and even her “future” to the divine corpse Lilith for her ambitions and ideals, now faces the temptations of nightmares and unprecedented pleasure in her eternally youthful body.
As the young empress walks the path of conquest, what awaits her at the end: bloodstained glory, or inescapable ecstasy?

[Translated from dlsite]