Tohru Honda is an orphaned teenager who comes to live with the Sohma family in exchange for housekeeping duties, but she soon comes to know the family secret.

In search of independence and solitude, the sharp-tongued Ririchiyo Shirakiin moves to the Maison de Ayakashi, an apartment building with its own Secret Service. Ririchiyo is eager to be alone, but upon her arrival, she is greeted by Soushi, an SS agent who seems ... familiar somehow. Familiar and yet ... not quite the same. Troubled by recurring dreams of a different Soushi--a man who loved her ... and suffered for her--Ririchiyo chooses to accept...