Kamoshige Inheritance

Kamoshige inheritance, also known as Kamoshige's money, is the hidden money that was sash away in Kamoshige Arimiya's safe box in the Arimiya Tower that The Arimiya Family seeks to have. Before Kamoshige died, he manage to change the PIN number of his safe box, so that no one knows code for it. Whoever inherits the money becomes the next successor and takes over the business. Now, the Arimiya Family is desperate to find out what the PIN number is and would do anything to find out. The person who has access to the money will gain power and become the next successor for Kamoshige while the Arimiya family is conflict for the hidden money.

Sumire Arimiya (Kamoshige's current wife) asks Katori Tatsuya to help her figure out the code for the safe box and ask him to rape Misora Arimiya, Chisato Arimiya and Shion Arimiya (Sumire's step-daughters) for pleasure in order to receive any information about the PIN number. Katori finds out some useful information from and the step-daughters and at the same time possessed by Kamoshige's spirit,seeing memories of Kamoshige's past Katori discovers the pass code and reports it to Sumire. But in the end of the hentai, Katori becomes the current governor and inherited all the money.