On a cold winter night, our protagonist spots a girl attempting to shoplift. He hurriedly tries to stop her and begins to hear her out. As she recounts her tale, the protagonist begins to feel sorry for the girl, who is being neglected and allows her to come over to stay at his place. But then one day, the protagonist returns from a business trip only to find the girl shivering from the cold at the door. He immediately embraces Rio's frozen body and...