On a scorching summer day, I head to a famous Kansai beach resort with a friend who's interested in hidden camera filming. It's a popular beach house bustling with tourists, where the owner's wife jokingly says in typical Kansai style, "I'll buy your hidden camera footage at a high price." Taking her words seriously, I prepare two state-of-the-art hidden cameras and install them at optimal upper and lower positions. Exchanging tapes every 90 minutes, I accumulate a total of 480 hours of footage. From this massive collection, I carefully select women in their late teens to early thirties at the peak of their femininity, editing the best scenes into this final production.