BLOOD+

Saya, a high school student who has lost her memories prior to last year, is about to change. When she accidentally meets a handsome cellist, Hagi, it's a sign that the wheel of fate is spinning again.

Kai, who has come to pick up Saya from school, witnesses an incredible scene: her bloodcovered sister is swordfighting against a creature beyond description.

David reveals to Saya that she is the only living being who can defeat Chiropterans: it is the name of creatures like the one that attacked her at school.

George is seriously injured and is taken to the emergency room. Full of anger, Kai pulls out a Colt M1911 that his father hides, and goes in search of the man, or whatever it is, responsible for that hell.

David and his group go in search of George, who had been taken by the United States Army, after learning that there is a secret facility in Yanbaru.

Saya and her team infiltrate Yanbaru's laboratory. David learns that the United States Army is conducting underground experiments to build artificial chiropters.