My Dear, Curse-Casting Vampiress, Vol. 2 (manga)

To wipe out the wave of vampires terrorizing Japan, Isuzu teams up with Baroque, the legendary vampire slayer, with a goal of casting a curse on a massive scale. But while conducting their assessment, the two encounter a pair of vampire girls, and in the midst of battle one of them takes a special liking to the taste of his blood...