Malleus, the powerful fae Prince is obsessively in love with Yuu, forcing her into marrying him. But she flees. Just as she was about to escape the school, he catches her, and even with the other dorm heads (the schools most powerful) they stood no match, and he used his magic to enslave anyone useful and lock away others in dungeons. Silver, Lilia and Sebek are the only exceptions. Over time, Yuu is developing case of Stockholm syndrome, from being unable to see anyone but Malleus for so long.