Corpse Princess: Kuro

Corpse Princess: Kuro picks up six months after Tagami Keisei's death at the hands of the Shichisei, a group of elite Shikabane who act on more than just regrets. Kagami Ouri, who formed a temporary contract with Makina to save her from degenerating, has since been training to become a proper monk. This will allow him to remain contracted to Makina and help her fight the Shichisei, who are responsible for her own death, that of the Hoshimura family, and Keisei. The Kougon Sect monk Shishidou Akasha has turned against Makina and the organization, intending to destroy the Shikabane Hime and the Kougon Sect.