START-518 Gal Duo Time Stop: Punish the two convenience store part-timers who are desperate to look

Momona and Riko are gal friends who work at a convenience store. They are obsessed with taking eye-catching photos for social media, and show no remorse for causing trouble to those around them. One day, the two steal a travel voucher that was a prize in a lottery and go on a trip. While on their trip, they find themselves naked in the pool without realizing it, and they often start to smell something strange. What on earth happened to the two of them?