After being transferred to the Linkoping abbey in Sweden, Cirice Morolf, a Sister of Sin specializing in library work who comes from a cursed bloodline, befriends a strange girl, a shy Cardinal, and a charismatic heir to the papacy. When it's discovered that Ciri's recurring dream is not strictly limited to her own mind, she begins to investigate the strange meaning behind the dream while struggling to remain in control of herself. Ciri had hoped to forget her past and move on from the dark secret that she clings to; however, when the truth comes to light, Ciri must make the decision to trust others again or run from her truth once more.