Beautiful inn proprietress Chisato runs a luxurious traditional ryokan. On the surface, it appears to be an elegant establishment, but in reality, it's a special place where guests can engage in real sex with her. Though it claims to turn away first-time visitors, men keep coming one after another upon hearing rumors about Chisato. However, she never outright rejects them. The reason is that she wants to see whether their manhood truly excites her or not. Her strict judgment in this selection process only heightens her allure.