Chisato, a beautiful innkeeper who runs a high-class and luxurious inn. Although it appears to be an inn, in reality it's a brothel where real acts can be performed with the beautiful innkeeper. Basically, first-time customers are not allowed, but men who have heard rumors about Chisato come one after another. However, Chisato doesn't casually refuse even first-time customers. That judgment is whether or not the penis meets Chisato's standards...