The familiar photo booths found in convenience stores and train stations have now become a hot topic among young women. The reason is a certain hidden mechanism in the photo booth that transforms women's faces into their 'best expression.' They must desperately hold back so as not to be heard outside while answering harassing questions from a voice guide that sounds like an interviewer. Additionally, there are harsh conditions set, such as maintaining composure under the vibration of a piston vibrator. In this work, it was a bit disappointing that the low-angle camera was removed midway, but this change was likely made considering that the girls' voices would become hard to hear. However, there's still plenty of room for improvement. In the sequel, we can look forward to more evolved mechanisms and shooting conditions.