A group consisting of teacher yuu okada, his senior ms. rumi, and sixteen elementary school students embark on an excursion to sanrio puroland. however, they become lost and stumble upon a terrifying theme park known as "yuropia!" the frog egg mascots in the park inform them that their only means of escape is by successfully completing all ten attractions and earning medals. will this group be able to make it out of yuropia unscathed? this story may resonate with those who carry emotional baggage.