When the girls return from their school trip, they're bummed out because they haven't had enough energy to enjoy the whole trip. They decide to buy a few souvenirs to remember the trip by. One of the girls suggests that they all buy a matching set of souvenirs, so everyone will have something unique to take with them on their next trip back to Japan. This way, everyone will be able to relive all the fun times they've had in Japan. The girls agree to buy matching sets of souvenirs.