Nathan is an ordinary boy. However, when he frees the lively Yo-kai "Whisper" from a vending machine, he receives a magical watch as a thank you. With this Yo-kai Watch, Nathan can see all the colorful beings known as Yo-kai. They play all sorts of pranks on people, and from now on, Nathan has his hands full trying to win the Yo-kai over. For instance, there's this grumpy cat Yo-kai that constantly attacks passing cars. But why?.