As Harutora and Natsume navigate the treacherous hallways of Onmyo Academy, alliances shift and their magical powers evolve. Adversaries become allies and shocking secrets are revealed when dark forces launch a violent attack on the school. Through it all, Harutora honours his vow to stand bravely by Natsumes side no matter what evil they may face. But when the powerful Raven Coat unleashes Harutoras demonic side, he finds his hands stained with innocent blood and his soul tempted by a taboo ritual that could forever change the fate of our world!