Based on two movies. In this book, the animals and monsters live in harmony together with the two Foxington sisters, Diane and Teresa, as they both meet Mike Wazowski during their first field trip to Monsters Inc., to learn about scaring. Throughout the years, the sisters and Mike managed to get into their dream school, Monsters University, where the two sister meet the misfits of the university, Wolf, Snake, Tarantula, Piranha and Shark and Mike meets Sulley. What waits for the three for this school years.