Momona and Riko are gal friends who work at a convenience store. They're obsessed with taking Instagrammable photos, and they don't seem to feel any remorse even when they cause a lot of trouble for those around them. One day, the two of them pocket a travel voucher they won as a prize in a lottery and go on a trip. While on their trip, they start to feel uneasy, such as finding themselves naked in a pool without realizing it, or noticing a strange smell. What exactly happened to the two of them...?