https://www.youtube.com/watch?v=ZYkJ5mqj66A
That's the top video you get when you search for the title of the show.
WHY DOES SHE OPEN HER BLOUSE? IDK! WHY DOES SHE KISS HIM TO GIVE HIM BLOOD RATHER THAN JUST PUT HER FUCKING WRIST TO HIS MOUTH? IDK!
The show makes absolutely no sense and just does things for no reason.
I would think the art style would be a dead giveaway that it's probably going to be trash, no anime I have seen looking like that has ever been anything good or even respectable.