Vampire Kisses: Blood Relatives Vol. 2 (manga)

Who says dating a vampire is easy? Raven's nocturnal romance with her immortal love Alexander is definitely dicey, but even more so with Alexander's meddling half-vamp cousin in town. Claude and his sketchy gang are on the hunt for a stash of blood-filled vials that can turn them into pure vampires. With an old family feud casting a shadow on the search, they'll do anything to get their hands on the vials. Raven and Alexander must swiftly mastermind a plan to outwit them, but will the very lure of the vials create more risk for Raven than she could ever imagine?