Strike the Blood(2013)

With the appearance of the strongest vampire in the world named _Akan 4th_, who is only mentioned in legends, and also predicting the spread of the disaster, the government agency _Shir Shah_ decides to send someone to spy and destroy this vampire. They choose the great magician "sword shaman" for this job... But for mysterious reasons, the person who is sent for this job is one of the students of "sword shaman" named "Himegari Yukina". He is still learning magic techniques. Who is the secret identity of the "fourth ancestors"?! How will "Yukina" overcome the biggest vampire of the price?!!