Blood Hound(Japanese: 夜型愛人専門店−ブラッドハウンド−DX,Hepburn: Yorugata Aijin Senmonten -Buraddo Haundo- DX?) is a manga by Kaori Yuki. Appearing as a serial in the Japanese magazine Hana to Yume, the chapters of Blood Hound were compiled into one tankōbon volume, published by Hakusensha on June 5, 2004. It focuses on a naive, loudmouthed teenager named Rion, who investigates a host club full of vampires when she suspects they must be related to the disappearance of a lot of people in the neighborhood, including her best friend. In the process she begins to befriend them, especially the leader Suou, with whom she develops a romantic relationship. Ultimately, she figures out the vampires are not the cause of the disappearances, but her adventures with the vampires are only beginning.
Vampire Host is a live-action television drama series loosely based on this manga. The series has been licensed in North America by Bandai Entertainment under the title of Bloodhound.
Rion Kanou – A teenager who initially suspects that the Host Club Krankenhaus is behind the disappearance of several people in her community, including her best friend. In the end, she figures out that the vampires are not responsible for the disappearances, but her school guidance councilor, who has sexual fetishism for blood.
Suou – The lead host of Krankenhaus, who begins to develop a romantic relationship with Rion. He also suspects that she is the reincarnation of Ellone, "the one with the purest blood," whom he once loved.