Kaori Saeki is a central character in the anime series Bible Black. Known for her intelligence and mysterious aura, she is a member of the school's magic club. Kaori is deeply interested in the occult and plays a significant role in the unfolding of the series' dark and supernatural events. Her character is complex, often displaying a cunning and manipulative demeanor, which makes her an intriguing and pivotal figure in the storyline. As the series progresses, her actions significantly impact the fate of other characters.