A new class of pint-sized preschoolers arrives at Pitchfork Pines, and the Super Monsters take their superpowers to the next level - the Purple Room.

　　小萌怪在春天的第一夜齊聚公園，這裡有好吃的、好玩的，還有超級可愛的萌怪寵物！

Preschool kids whose parents are the world's most famous monsters try to master their special powers while preparing for kindergarten.