The fates of Miyu and Yui, these two vampire princesses, finally cross paths! Miyu, a vampire princess who has lived an eternal life as a 14-year-old, watches over the world's Shinma alongside her servant Larva. She locates the "stray Shinma" that have fled into the human realm and sends them back to the darkness. Meanwhile, another girl, Yui Mizuki, has awakened as a vampire princess and continues to live. Yui, who at first had difficulty adjusting to her new existence, now spends her days living as a human. The new tale of these two vampire princesses, detailing their meeting and converging destinies, is now set in motion—!!