teasing Ko. She also loves to drink beer. It is later shown that Nazuna's existence is a mystery to everyone involved. Thanks in part to this mystery, Nazuna does not know her exact age. She assumes that she has been around 30 to 40 years. She mentions her embarrassment with not being an older more classical vampire. Nazuna's life cycle is also not understood as revealed by Kabura. Kabura was forced, begrudgingly, to raise Nazuna and that she believes this discrepancy regarding her life cycle has something to do with her parents being a human and vampire. Nazuna was left with Kabura by Nazuna's mother after her death giving birth. Nazuna's mother was the one that turned Kabura. Kabura is shocked to find Nazuna at a location given to her on a note, because she is completely identical to her mother, yet no older than around 4 years, possibly, unable to speak or feed herself, fully grown, calling into question her exact age. Kabura seems to suggest that a born vampire may age differently since bitten vampires are frozen in time. Nazuna having been born a vampire seems to have frozen at around the same age as Ko both mentally and physically, even though she has existed for 3 to 4 decades. It is also assumed that Nazuna might be the only vampire by birth currently known. She is kept at a distance from the main vampire group due to her stunted personality, lower intelligence and immaturity. No one knows what her birth could mean for the vampire world or what she is. Her age becomes a larger plot point when Anko reveals the way to kill vampires, which involves attaining a weakness item usually attached to a vampire's past. Anko starts using these items to maim vampires connected to the main group. Prior to Nazuna learning about her birth from Kabura, she confides in Ko that she may have fallen in love once but cannot remember as vampires slowly lose their memories upon being turned by their love interest. Once Anko's attacks begin with the weakness items, the group starts to hunt down and destroy their own items. Upon the revelation from Kabura that Nazuna was born a vampire, Nazuna and Ko come to the conclusion that she has no weakness. This assumption ends when Nazuna is attacked and wounded by one of the items. It is revealed to