Blood+
English title: Blood+
Japanese title: ブラッドプラス
Alternative titles: Blood Plus
Type: TV
Source: Original
Episodes: 50
Status: Finished Airing
Aired: Oct 8, 2005 to Sep 23, 2006
Broadcast: Saturdays at 18:00 (JST)
Duration: 23 min per ep
Rating: R - 17+ (violence & profanity)
Studios: Production I.G
Producers: Aniplex, Mainichi Broadcasting System, eNa
Licensors: Sony Pictures Entertainment
Genres: Action, Drama, Horror, Mystery, Supernatural
Themes: Gore, Military, Vampire

Saya Otonashi is a seemingly ordinary girl living a mundane life with her adoptive family in Okinawa City. In fact, her only peculiarities are suffering from anemia and being unable to remember any of her life beyond the previous year.

However, Saya's forgotten past quickly comes back to haunt her—one night, she is attacked at school by a creature that feeds on human blood. Just when all hope seems lost, a mysterious man named Haji appears and fends off the creature temporarily. But when her rescuer forces her to drink his blood, Saya suddenly enters a trance and slays the monster with ease, using her own blood as a catalyst. 

Saya then learns of an organization named Red Shield, founded for the sole purpose of defeating the hellish beasts. Now Saya and Haji must work together with Red Shield to fight these fearsome monsters and unlock the secrets to the girl's past.

[Written by MAL Rewrite]