I kinda dislike the seriousness of this, i don't care about other v-words and their motives, but at the same time, since the first chapters, it's been serious in that plot. Eh, more yuri for me.
Humans should stay mortal in vamp stories. It always feels like such a copout if they can just get some vamp blood or something and they are suddenly immortal or whatever.
Love a MC who isn't afraid and is upfront with what she wants. Don't make Ichika cry.
Regarding the revived ant(s), perhaps Aria's blood is coveted in that it can be used to create the most potent revitalizing elixir. Thus the powers that be, want to use it for self/monetary gain? Chapter felt extremely short.