As Kaga Ryousuke strolled in the rain, his romantic heart led him to a stunning girl with crimson eyes soaked to the bone. People averted their gaze, but Ryousuke had learned to cherish women, so he kindly invited her to his place to dry off. Little did he know, this enigmatic girl would impale him in the heart and depart… or did she? Who is this alluring young woman, and what sinister intentions does she harbor towards him?