By Setona Mizushiro.

New faces appear in Taki's and Sensei's secluded life that hint at a dark past of Sensei. With an exorcist bent on spearing Taki through and an old acquaintance ceaselessly nudging Taki toward the tempting darkness, the Church is anything but a sanctuary. Meanwhile, the hidden side to Sensei gains more ground with each passing day...

English manga graphic novel.