For Rose, a Caster who can barely work the most basic spells, it ought to be a blessing to be paired with Eigen, since he's a top student and a rare young Knight who can actually use magic. But instead it feels like a curse. Uncomfortable in her own skin and frustrated by her struggles with what society expects of her, Rose's prickly relationship with Eigen is complicated by the fact that he seems to know something about her missing memories. What happened in the clock tower three years ago that led to Rose's injured arm? Who was the figure in the shadows that Rose can just barely recall? And why does Eigen keep looking at her like that?!