While going deeper into the woods one day, primary school student Keita Amano ('Nate' in the English localisation) notices a bizarre capsule toy machine who tells him to insert money which he obeyingly does. But after opening the capsule that came out, a ghostly creature named Whisper materialises. Whisper, who was sealed inside the capsule, rewards his liberator Keita by becoming his Yo-kai butler and gives him a Yo-kai Watch. Whoever wears the watch gains the ability to see supernatural creatures called Yo-kai, each type possessing different kinds of magical abilities, and which are normally invisible to humans. The Yo-kai Watch also allows the wearer to summon any Yo-kai they have befriended, enabling the wearer to make use of the Yo-kai's powers. Using it, Keita and Whisper encounter many mischievous Yo-kai around town, resolving the trouble they're causing and befriending many at the same time.

While going deeper into the woods one day, primary school student Keita Amano ('Nate' in the English localisation) notices a bizarre capsule toy machine who tells him to insert money which he obeyingly does. But after opening the capsule that came out, a ghostly creature named Whisper materialises. Whisper, who was sealed inside the capsule, rewards his liberator Keita by becoming his Yo-kai butler and gives him a Yo-kai Watch. Whoever wears the watch gains the ability to see supernatural creatures called Yo-kai, each type possessing different kinds of magical abilities, and which are normally invisible to humans. The Yo-kai Watch also allows the wearer to summon any Yo-kai they have befriended, enabling the wearer to make use of the Yo-kai's powers. Using it, Keita and Whisper encounter many mischievous Yo-kai around town, resolving the trouble they're causing and befriending many at the same time.