Ryo Ikehata (W) and Chizu Hashii (A)

Following the traces of Diva, the leader of the Chiroptera, Saya and her group make their way to Russia. But awaiting their arrival are Diva's powerful protector Chiroptera, " Chevalier." In the middle of the battle against this new threat, Saya is told a horrible truth—"It is because you are one of us." Is Saya a human, or something more sinister…?