At a deserted hot spring inn deep in the mountains, the cute host has a great reputation for providing naughty services. However, the fox girl is not satisfied with the status quo. “I’m seriously plagued by what more I can do for customers!” At that time, she received a message from God. It was about making customers happy with cosplay. “If you wear a uniform costume and meet a group, you can expose your cute butt and unexpectedly large breasts, and if you enter the sauna in a micro bikini, you will enjoy everyone’s company and fulfill all their desires.

A Western-style building quietly standing deep in the mountains, the Black Rose Museum. Hired as a live-in tutor, Takamiya spends his days filled with lust with the beautiful women living there. Marie’s wife, Maria’s mother and daughter, and the maid Ara join in, and Takamiya continues to be devoured without rest. Captivated by pleasure, what awaits him beyond is a rosy future or a nightmarish reality…