Trinity Blood (2005)

Trinity Blood is set in a post-apocalyptic future where vampires and humans coexist. The story follows a priest named Abel Nightroad, who is also a Crusnik, a vampire that feeds on vampires. As a member of AX, a special organization in the Vatican, Abel is tasked with hunting down and eliminating vampires who threaten humanity. Alongside his allies, including Sister Esther Blanchett and Ion Fortuna, Abel fights against powerful enemies and uncovers the truth behind a conspiracy that could change the world. The series explores themes of religion, faith, and the struggle between good and evil.