Sayonji Akitsugu is the inheritor to his father’s huge fortune. However he hates his father as a result of he holds him chargeable for his mom’s suicide. When his father unexpectedly dies, Saionji is the least prone to declare the household inheritance. However, his secretary, Sannomiya Rei, convinces him to alter his thoughts. He lastly arrives at his ancestral residence, an expensive mansion filled with docile maids, who he believes have been solely wanted to serve their now deceased grasp… Ah, if solely it have been that easy, a brand new homicide happens on the citadel, and Sionji decides to hide this truth from the general public so as to examine the case himself…