It was supposed to be a simple lost item case, but it turns into a mysterious illusion filled with desire and shame. Kido Satoru calls in his assistant and discovers that the tutor and the mansevant are actually con-artists that are after the mansion's fortune. Following his hunch, Kido asks the butler what is going on and finds out that the late Master and the current Mistress are not related by blood. It is only then that Kido realizes that his past intertwines with this mansion...