Mike (Big Eyed Boy), after visiting Monster Power Company, made up his mind to enter Monster University to learn scaring skills and become a scaring specialist in the future. Later, he got his wish and was admitted to Monster University. One night not long after school started, a huge monster named Sullivan broke into Mikes dormitory. At that time, Sullivan (Sulley) planned to hide the mascot of Monster Universitys rival School of Horror Technology in his room, but accidentally ran into Mikes dormitory (he climbed in through the window at the time).
This mascot later made the two become enemies. The two competed with each other in the intimidation class offered by the college to see whose intimidation ability was stronger. When it came time for the final exam of this course, something unexpected happened, causing both of them to be expelled by the dean of the frightened college and go to other colleges. At the same time, Sullivan was also expelled from his own club. In order to prove that he has the ability to become an excellent scare specialist and that the deans decision to fire him was wrong, Mike joined a society of second-rate monsters and participated in the scare competition with his teammates. But this second-rate monster club is really short of soldiers. They need one more contestant to reach the minimum number of registrations. For this reason, Mike had no choice but to choose his mortal enemy Sullivan. At the registration site for the competition, he promised the dean that if he lost, he would leave Monsters University. At the same time, the dean also promised him that if he won, he and his teammates could return to the Scaring Academy. During the game, Sullivan and Mike gradually untied their hearts and became good friends.
