Six months after the events of Monsters, Inc., the city of Monstropolis is now fueled with the sound of laughter. Tylor Tuskmon, a mechanic on the Facilities Team, dreams of working alongside his idols Mike Wazowski and James P. 'Sulley' Sullivan.

At Alfea College, fairy warriors from all over the universe study and train to improve their magic powers. Bloom, a girl from Earth, joins them after discovering her own special abilities.