http://myanimelist.net/anime/18277/Strike_the_Blood
Synopsis
The Fourth Primogenitor—That's the world's strongest vampire that should only exist in legends. Accompanied by twelve Kenjuu and spreading calamity, this phantom vampire appeared in Japan. For the observation and obliteration of this Fourth Primogenitor, the government and Lion King decided to dispatch an attack mage known as a Sword Shaman. However, for some reason, the one chosen for the observation was a apprentice Sword Shaman girl, Himegari Yukina. Wielding the strongest anti-primogenitor spirit spear, Yukina arrived at Demon District, Itogami City. What is the true identity of the Fourth Primogenitor, Akatsuki Kojou, she encountered over there!?

I'll watch this show later, I knew the manga but I forgot it since :s.

animes probably gonna pass the manga after like episode 4

it's very good, good balance of action and funny stuff, something like Hataraku

I really enjoyed the first episode. I think this will be a good series.

watch this today it was alright

this has potential.

was getting excited about it until i saw ecchi listed under genre

lol'd, commented on the wrong show.

ye i watched the 1st episode; just wondering who exactly was the girl u see in the flash back?