Taimanin Asuka: Another Story - Zenkou Seito ni Okasareru, Akumu no Gakuen Seidorei

Asuka Kogawa, the last survivor of the prestigious Kogawa family. As a revenge for the murder of the entire clan, she was active as a "steel grim reaper" who sought out Edwin Black and rectified the forces of darkness regardless of human demons. One...