Blood+

A memory‑less teen becomes humanity's blood‑soaked weapon against nightmarish monsters.

Saya Otonashi appears to be a typical high‑schooler in Okinawa, living with her adoptive parents and coping with a chronic case of anemia. Beneath that ordinary façade, she harbors a blank slate of memory—her past evaporated after the previous year, leaving her with only a vague sense of unease. One night, a feral creature that drinks human blood ambushes her at school. Just as the monster’s claws close in, a shadowy figure named Haji intervenes, slashing the beast with uncanny speed. He forces Saya to drink his blood, triggering a violent trance that transforms her into a ruthless slayer; she tears the creature apart, using her own blood as a weapon. Awakening to the truth that she is a "Chiropteran"—a vampire‑like being created to hunt the very monsters that now stalk humanity—Saya is recruited by the clandestine Red Shield organization. Under Haji’s stern guidance, she is thrust into a globe‑spanning conflict against hordes of blood‑thirsty abominations, each encounter peeling back layers of her erased history. As the series progresses, alliances shift, betrayals surface, and the line between hunter and hunted blurs, forcing Saya to confront the monstrous nature within herself while striving to protect the fragile world she barely remembers.