Dance in the Vampire Bund, Vol. 2 - Nozomu Tamaki Dance in the Vampire Bund, Vol. 3 - Nozomu Tamaki Dance in the Vampire Bund, Vol. 4 - Nozomu Tamaki Dance In The Vampire Bund, Vol. 1 (Dance in the Vampire Bund, #1) - Nozomu Tamaki

Warning to potential readers:  Even though one of the main characters is an old vampire, she physically resembles a 10-12 year old girl.  It's not pornographic or anything but there is a lot of nudity so this series isn't for everyone.  

The story itself is really good and fast pace.  It's a good series so far as long as I don't focus too much on certain topics.