The protagonist Nimura Kyouji, runs a hot spring inn at a hill station and lives a quiet life away from the city. But, Kyouji also has another motive. He secretly preys on the guests who stay at his inn and uploads their videos on the internet for a large amount of money.

Today, an innocent family from Tokyo arrives at his inn.

"Good afternoon, we made a reservation at this inn, the name is Hidaka――......"

This time, the Hidaka family, who owns a fashion company in Tokyo, will be staying at his inn. When there are a woman with big breasts and her high school girl daughters, there is literally no way that he would ignore this opportunity. Even with the husband and the daughter's childhood friend in his way, he knows that he will figure something out later.

Thus, Kyouji immediately carries out his plan to ruin the mother and daughters of the Hidaka family.