Zero: Black Blood (2014) is a Action & Adventure, Sci-Fi & Fantasy series that follows rei Suzumura, Zero the Silver Fanged Knight, is patrolling on his own when he encounters the white Horror Ring, who has created a commune where Horrors and humans live together in harmony, so long as one human a month allows themselves to be devoured by the Horrors. Rei, along with Makai Priest Cain and the knight-in-training Yuna are ordered by the Makai Senate to slay Ring and free the humans under his thrall by means of Yuna's mother the Makai Priestess Iyu. Zero: Black Blood is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 7.8 out of 10 from 6 votes. Fans of action & adventure series may also want to explore similar titles below.