A man and a woman are by themselves in a mansion on an isolated snowfield. Lysithea Heirenner del Arman, an aristocratic young lady who lost her entire family in the revolution goes into exile on her own. She meets Terren, a broker who lives in an isolated mansion on a snowfield, in hopes of escaping to a foreign country. However, Lysitheia and Terren are forced to spend time just the two of them as heavy snow starts falling and traps them in. Terren keeps Lyshteia safe in dangerous situations: her hearing strange sounds every night, and burglars trespassing in the mansion. As Lysitheia lowers her guard, she becomes more and more dependent on Terren. She’s is attracted to Terren, but she’s concerned about who he really is as he is secretive, and does not reveal much about himself. Then one day, the situation changes in an instant when a new guest comes to the mansion…