Spoiler for first impression:
Hmmm ... a pantsuness of about one hundred milliaika. Quite a lot. Not to mention a pseudo-bukkake shot.
And the plot will probably be recycled in epsiode 2 to 10 at least, with some additional harem buildup of course. For female vampires my yardstick is still Reiri and Moka doesn't even come close.
In case you couldn't guess: I'm not impressed.