Call of the Night 6 Kotoyama (2022)

The sixth volume follows Ko, who happily goes sightseeing in Tokyo with Nazuna while trying to warn his childhood friend Mahiru about the dangers of dating the vampire Kiku. After Ko learns a disturbing secret about Kiku, Detective Anko pursues one of Nazunas vampire friends with extralegal justice in mind. To prevent Anko from exploiting their weaknesses, the vampire women must delve into their pasts. Unfortunately, Nazuna cannot remember anything from her human life. Could a decades-old appointment card reveal who turned Nazuna into a vampire, and why?