Maimaimaigoen

Okada Yu is a new nursery school teacher on a field trip to Sanrio Puroland with his students. The day has gone well, and the group is about to head home — when his vision suddenly distorts. The children and their teachers find themselves drawn into Uropia, a strange and unsettling amusement park populated by an oddly cute creature called Froggy Egg. To escape Uropia, they must take on the park's various attractions and collect ten medals. Will all sixteen children and their teachers make it out safely?