Note: Translated by John Thomas

Synopsis: "The monsters are winning, Saya Otonashi thought she could battle against the Chiropterans, defeat the undead monsters, and avenge the life of her adoptive father. But, the creatures, led by Diva, the twin sister Saya never knew she had, have struck a fatal blow; their attack on Saya's adopted brother Riku has left him near death, infected with the vampiric curse and destined to transform into a Chevalier, a half-human abomination with an unquenchable bloodlust." — quoted from the plot description of the book's back cover copy.